 At Congress are live translated between English and German and to one additional language. We appreciate your feedback. Please use the hashtag hash C3T. Your translators for this talk are red on toast and os10000. After Corona is right in the middle of the climate crisis. Wir haben keine visuelles Feedback. Es geht los. Wir haben die Illusion der Unverwundbarkeit. Ich habe den Jahresrückblick. Ich habe das Jahrreview von letzten Jahres angeschaut. Wir sind dann noch 2020. Wir haben das Wuhan Krankenhaus angeschaut. Wir haben das Wuhan-Hospital angeschaut. Wir haben die ganze Zeit begonnen. Wir sind unwunderbar. Dann kommt der Robert Koch-Institut. Der Gefängnis der Corona-Institut ist zu Hause. Das Problem mit Corona ist nicht die Mortality. Wir haben jetzt 30.000 Natten in Deutschland. in Deutschland, das ist dramatisch, aber Alkohol und Smoking sind mehr gefährlich. Das heißt, Corona führt uns zu Pivot-Points. Wir wollten die Kurve flatten, und wir haben sie in Bergamo gesehen. Unsere Hospitale waren übertaxt, und das ist warum wir die Kurve flatten müssen. Und es funktioniert nur mit der Schaddown. Wir müssen unsere gesamte soziale und Gesundheitssysteme pivotieren. Und das Problem mit Corona ist, dass wir es nicht sehen. Und ich sehe nicht, wie man sich infektiert, und ich weiß nicht, wie Corona die Tod ist. Und wenn ein Mensch es nicht sehen kann, und sie es nicht sehen, dann erinnert sie es nicht. Es gibt viele kleine Partikel, die etwas tun können. So, jetzt spricht er über Carbon-Dioxide, und er sagt, wenn es pink ist, dann sehen wir es. Wir fühlen es. Carbon-Dioxide ist invisibel. Wir sehen es nicht, aber wir können sehen, dass das Carbon-Dioxide den Carbon-Dioxide verändern kann. Ein Beispiel zeigt, dass das Carbon-Dioxide schon zwei Planeten pivotiert hat, Mars und Venus. Sie müssen auch Temperaturen, die eine Kohlen-Dioxide-Supportive haben, über 90% CO2. Und Venus hat mehr als 400°C, weil es CO2 gibt. Und das zeigt, dass wir hier wirklich mit Kohlen-Dioxide, mit Carbon-Dioxide, ein System in ein anderes Staat tildren können. Ich advise die Leute, zu Venus zu schauen und 400°C zu schauen, und sie haben einen Sinn, was Carbon-Dioxide tun kann. Wenn wir hier noch in mehreren Percenten sind, dann wäre es unmöglich, hier zu leben, aber wir sind hier in Parts per Million. Wenn wir wenig CO2 haben, dann gibt es einen Ice Age. Und mit viel CO2 haben wir eine Hechtphase. Was passiert, ist, dass es zwischen 1750 und 1750 passiert. Und hier sehen wir, wie es sich betrifft. Wir haben es zu etwas, das nicht für 300 Millionen Jahre lang gesehen hat. Das ist nicht so viel wie in Venus, aber wir brauchen nicht 400°C. Und um ein paar°C zu ändern, werden kleine Veränderungen genug. Und das, was wir sehen, ist die Temperatur über die letzten 20.000 Jahre, also seit der letzten Ice Age. Jetzt auf der rechten Seite sind wir in einer Zeit. Das Ice Age war ca. 10.000 Jahre. Wenn wir von minus 20.000 bis 5.000 Jahre lang schauen, ist es ca. 40°C. Wenn wir jetzt in der Presse schauen, dann gibt es dieses rapiden Increase in den letzten 100 Jahren. Das ist ca. 1°C, equivalent zu 1⁄2 der Ice Age, zu einer Warnperiode. Das ist ein sehr starker Increase und starker Veränderung, fast Veränderung. Also in Bezug auf die Veränderung des Ice Age zu einer Warnperiode hat es ca. 10.000 Jahre lang gemacht, aber wir haben das in einem sehr langen Pass gemacht. Wir haben das nicht für eine sehr lange Zeit in der Geschichte gesehen. Das 1°C Plus kann man sehr schnell sehen, weil wir hier die Norden-Arktik-Area haben. Die dritte Seite ist Kanada, die Russland ist, und wir comparisonen von den Seventies bis heute. Und wir sehen einen radikalen Deklin in den Ice Age. Wir erinnern uns, dass in der Mitte des Jahres ein Ice-Free-Novement wird. Aber wir müssen auch darüber denken, was passieren wird, wenn die Landeise schmerzen. Also, z.B. in Greenland wird es große Veränderungen werden. Wir sehen auch viel mehr Feuer, z.B. in Australien und in Sibirien. In Bereichen, wo man nicht viel Feuer oder Kalifornien erscheint. Also, wegen den Veränderungen durch die Klimaveränderung, sehen wir die Veränderungen in Grastik. Das ist das deutsche Land. Wir haben hier auch viele Veränderungen für die Veränderung und die Rhein-Westfalen. Wir haben hier ein großer Dachbacken des Forestes in Deutschland. Und das ist nur für 1°C. Es gibt auch viele Drainers hier in Deutschland. Wir haben ein Problem mit den Rhein-Westfalen, wie man hier sieht, und die Klimaveränderung hat schon viele Millionen Euro und Euro in Damage zu der Ökonomie. Und das ist nur 1°C, von dem wir wissen, dass es schon da ist. Und unsere Modelle predictieren, dass die Veränderung, wie es normal ist, um ca. 4°C zu erhöhen. Wenn in den nächsten 100 Jahren die Temperaturen in die same Weise wie sie vorher gemacht haben, dann werden wir eine Veränderung haben, als wenn wir von Eis-Age bis zu einer Warnperiode kommen. Und für die Veränderung in der Eis-Age in Deutschland ist die Veränderung vor 400 m Eis. Der Planet wird von Eis-Age bis zur presenten Warnperiode gewechselt. Sehr schnell, sehr viel. Und das wird sehr schnell passieren. Und wir haben eine sehr große Warnperiode. Also, was wäre das Wichtigste an den Rhein-Westfalen? Es wäre ca. 3 m. Und ja, Miami hat schon Probleme, aber es werden viele Warnperiode, die unter Wasser gehen. Also, eine Menge von 100 Mio. Personen. Also, es werden viele Migrationen von diesen Warnperiode bis zu den anderen Teilen der Welt. Also, im Moment ist es nicht so viel, aber die Veränderung wird erhöhen. Es wird schnell. Wir sehen auch, dass die Veränderung verändert ist. Es ist nicht mehr hier regnend, aber an den anderen Teilen der Erde startet es regnend viel mehr. Und deshalb ist die Warnveränderung nicht sehr gut. Also, viele Bereiche in Afrika werden die Warnperiode all year round haben. Wenn es nicht regnet, dann werden wir auch Probleme mit Produktproduktionen haben. Also, wir haben das in Deutschland gesehen, 2 Jahre ago. Also, es kam eigentlich zu mir, das erste Mal, als ein reales Ding, 2 Jahre ago. Ich lebe in den Osten der Deutschland. Und 2 Jahre ago, die Leute haben mir gesagt, während der Deutschen Demokratik Republik, wir hätten jetzt ein reales Problem. Du weißt, was für den Klimawandel ist. Ja, weil ich in der News gehört habe, wir hatten 30 Prozent Reduktion der Produktproduktionen. Und in der Deutschen Demokratik Republik, damals, wir konnten das nicht verordnen. Also, es macht einen Klick in mein Herz. Nein, der Klimawandel ist nicht hier, es ist schon hier. Also, in Bezug auf, wenn wir in den Mitteln leben, wir hätten hier in Deutschland ein reales Femme. Es wäre einer der größten Femmes hier in Europa. Aber heute haben wir die Möglichkeit, die Kruppen aus anywhere else zu kaufen. Und die Leute sind sterben. Und andere möglichen Worte. Das ist ein weiteres Studium von Kollegen von mir. 3 Jahre ago haben sie das gemacht. Und sie haben es für den worsten Kassel kalkuliert. 4-5°C Plus. Was wird mit den den Leuten leben? Also, die redigen Bereiche in diesem Map wird so hart sein, dass die Leute nicht für längere Zeit oder Zeit weil sie eigentlich sterben. Und ihr seht, dass diese verletzten Beteiligten, z.B. fast alle aus Brasilien, aber auch in Indonesien, Teilen von Afrika. Also, ca. 1-1 Millionen Menschen würden in der Selle bleiben, während des Tages. Das würde auch eine Menge Migration führen. Wir würden keine Situation haben, wie in Venus. Also, das Planet würde nicht einfach starten, und erneut. Aber rote Bereiche von Land werden inhaltbar sein. Wir haben eine der größten oder sogar größte Migration der Menschen auf dem Planeten. Und wenn wir, wenn wir schauen, was Europa mit 20.000 Refugees in Griechen ist. Also, wir erinnern uns, dass es eine Katastrophe wird, wenn Millionen Menschen starten zu migrieren. Und wir müssen darauf bemerken, dass vielleicht die Zivilisation wird selbst zerstört, wegen dieses. Also, wir müssen jetzt wirklich das Unterkontrollen bekommen. In Bezug auf Corona, die Klima-Krise ist komplett unser Alltag der Magnetüte. Wir müssen jetzt bemerken. Wir sprechen immer über das Ende des Jahres, und das ist etwas schwierig, weil, wenn meine Generation starten zu kalkulieren, und es ist nicht unsere Konzerne, aber die jungen Generation, die 2010 geboren ist, oder sogar jetzt in 2020, die jungen Generation wird mit diesem Katastrophe einen vollen Anliegen. Und also, deshalb in den letzten Jahren haben wir die Fridays for Future Bewegung gesehen, und Menschen, also jungen Menschen sagen uns in der Schule, es ist Klima-Change, und wir müssen etwas machen, aber in realen Leben sehen wir, dass es nichts gemacht hat. Also, sie sind auf der Strecke gegangen, weil sie jetzt müssen. Also, in Bezug auf die Corona-Krise, wo es auch Tippingspunkte gibt, wir sahen, dass es vielleicht ein Zeitpunkt sein kann, wo man die Situation adaptieren kann, aber auf ein paar Punkte sind es Tippingspunkte, wo man sie nicht kann. Also, wir assumen, es ist 1,5°C plus, und das könnte ein guter Bezug sein, es könnte mehr in Italien, in Marz, wo es an einem Punkt ist, das System nur Tippingspunkte und es hat Chaos in den Städten. Das hat es eigentlich geschafft, um die Politiker zu bekommen, und wir haben das Paris-Aggreement, in dem wir auf reduziertes Klima-Change zu ca. 2°C und vielleicht weniger. Und wir haben Hoffnung, weil das Herr Präsident hat Elektriker, Herr Präsident hat zu zurück nach dem Bezug und but now we have to look and how fast we need to get active. We should run, when should we act, when we don't wanna get over 1,5°C, we will have just less than 400 Gigatons of C and tubes and in perspective we already emitted 2.300 Gigatons. So what's the rest budget? It's not that much anymore. So if the CO2 emissions go down linearly until 2040, then they must be at zero in order to not pass this boundary. And we see this doesn't look good. This is Germany. So ours are going down different to some other countries. So we are about generating one Gigaton. So within 400 years we will be doing this ourselves. This is however we'll be faster than this. At the moment this is going down through Corona. But we expect that it'll go up again after Corona and then slowly going down. So there's no ambition from our politicians to accelerate this decrease. So the first few years are part of the reunification of Germany because the eastern industry has broken down and then we've only had a decrease after 2000 and that was not so much. So here's the plan of the government. And with Corona it's gone down. So our plan is 40% through 2020. And unfortunately we will meet this one. This takes the pressure of the government. But we expect that it'll go up again. The targets are not enough. If we really wanted to achieve our goals then we would have and down into that green zone. So with what we're currently committed to we're going for two degrees Celsius increase. So with our targets we cannot comply with the Paris Accord. So where the current goals of the government this doesn't work. So the question is what can we do? What do we need to do? We need a true change in energy production. And the next 10, 15 minutes I would like to describe this. So here you see the energy consumption. Here you see the various renewables, biomass, watercraft, windcraft, photovoltaics. And that doesn't look so bad. You can imagine that until 2040 we're at 100%. But electricity is only part of it. So here's the same Diagramm again but shrunk a bit because we have other areas as well. So we have heating. We have travel transport. So for heating we use gas and oil and for transport we use gas and diesel. Also Brennholz In some of these areas we do use wood or something and we use a bio diesel. But if we look everything together then we cover 20% of the consumption. So for the Paris Accord the challenge is to come from 20%, less than 20% within 20 years to 100% renewables. Now I'm working here in engineering sciences and we look at it. This is what it looks like. Many people say we use nuclear energy while here's nuclear energy that's like 3% or 4%. So whether we use those or not doesn't really make any difference. We need to replace the gray area. We need a different dimension. Total ineffizient mit der Wärme um. Das heißt wir verfeuern Erdöl und Erdgas und wir wissen, dass wenn wir die Klimakrise in den Griff bekommen wollen, dass wir keine fossilen Energieträger mehr verfeuern dürfen. We need an immediate prohibition of new fossil energies. Okay, here's heat energy und da kann ich einer Kilowattstunde Strom 3 Kilowattstunden Wärme machen. Das heißt, wenn die so example heating if you exchange your gas heater with a heat pump then you then you will have lots of new energy reduction of fossil energies. Wir haben nicht mal if you think about it, we don't even have gas, but German government is not doing this, is not enforcing this. No example traffic. We need to have a different different behavior with regards to traffic. So people, Germany has about 80 million inhabitants. If we would translate this to the whole world, we wouldn't need to build 30 billion, 30 million more cars. So if we should, if we would like to to bring our behavior to the whole world, we need to have a completely different way of using traffic. So traffic is much more difficult problem than when heating because we are using fossil fuels and using them with just an efficiency of 20 at 30 percent. So, we can't we can't do this for longer. We need electromobility in the first place with public transportation with trams. But if you want to have a private transportation, it needs to be electric because electric cars have have an energy efficiency of a factor of three above fossil fuels. So we need to reduce the energy consumption this energy. So here we see a typical combustion engine will need about six liters of petrol and they'll get with one kilowatt hour about 1.8 kilometers. So, we have the problem that hydrogen is a bit inefficient in production and electric car would be a bit more efficient than the combustion engine. So all in all over including the production costs hydrogen car won't get further than a combustion engine conventional combustion engine. But if we would have a battery powered electrical car we wouldn't have that much of loss due to hydrogen production and we would get two and a half times the range from the hydrogen car. And that's the key. So, we need to get down with our energy consumption and we can this done by by forbidding fossil heating and using electric cars. If we would use this few points very efficiently we could reach our goal of the Paris Agreement actually if we enforce it now. And then the rest would have to be covered climate neutral. This is the pathway German government is enforcing right now. And we we plan about increasing renewable energies a little bit and doing this mainly by wind energy and this is the current planning which is not nearly enough. So there you see there is no vision the government brings here to increase the energy change in Germany to renewables. There is you have to admit this. So there is a big question mark because we have no plan how to reduce the energy consumption right now. So we see we have about a quarter of the speed we need to get our economy to climate neutrality right now. So okay, what can you do us? You could use solar thermic energy for heating but this is not that much we can do with this. We could use water power. This year is Norway but we don't have this kind of environment here in Germany a little bit in southern Germany but that's not enough. So the really really most important energy forms you can use in Germany is wind and solar and we have to increase them a lot. So if we want to use 100% renewable energies then we would have to have an increase of 3 gigawatt hours per year offshore and 7 gigawatt gigawatts per year onshore. Wind energy the first thing we can do is to do this offshore. People say if there's not going to happen in the northern sea we do it in the east in the Baltic sea but this is Baltic sea is much smaller. First thing we need to act on is using all the places in the northern sea we can. So we need to reach about 8000 wind channels in the northern sea and then we need to have much more onshore windmills. It's we need to have about 70 67.000 windmills onshore. This would be nice. We see it right now the development and the reds are new windmills, yellow these are repowering old windmills and blue is what we actually install new offshore. So the the figure before showed what we need and this is what is happening due to new regulations a few years ago. So new windmills basically aren't constructed anymore. The German government changed a bit of the legislation but this wouldn't be nearly enough. Yeah so and still we see if we build a lot of lot of windmills all we can then there is still a gap in the energy production and therefore we'll need solar energy. Solar energy we need 18 gigawatts more per year and right now we built about four gigawatts more this year last year. So we need to have a significant amount in percentage of our land area and if we look for for example Berlin Berlin not even using one percent of a roof area for solar energy there has to happen a lot and there needs to change a lot. And also we need to go on the on the farmland because there is a lot of space for photovoltaic panels for instance in this way which can be used next to agricultural usage of the area. So we have about 180 000 square kilometers of agrar area so people say with all solar panels they were nicer but we have to die and any death anyway. So what we also need is storage because if there's no solar sun and there's no wind then we still need energy. So I think we will have decentralized battery storages for instance for cars and for a longer periods of time for instance what we have produced in some of with sun energy we would use something like power to gas where we use water and CO2 to produce Maffengas Maffengas and store this in conventional storage facilities using them in the winter to produce electricity and heat. We calculated this also from an economic point of view and this is possible. And this for example is the biggest energy storage place in Germany. It's the gas storage facility Regen. Gas is stored under the earth and we can store the 4.4 billion cubic meters of gas. We have dozens of them so the problem of storage is already solved. And so switch to renewable energies will be economic feasible. It's not that expensive. If it used the amount of money we used for corona then Germany would be climate neutral overnight. Germany can do this actually for a crisis like corona but it seems strange and it's not doing this for energy change. Which means we need a radical new policy on climate change. We also but we also need to change personally. And a big problem is that it hasn't reached the people how difficult and how catastrophic the climate crisis is. So there's a survey on what people think can reduce to have their carbon food to reduce a farm. A lot of people think they wouldn't use plastic bags but in fact this is not something where you really reduce your carbon footprint a lot. But it's just 3 kg of CO2 per year. But we produce 10.000 kg of per person per year. So for instance we could do two beef steaks per week which Germans are consuming would be 300 kg of CO2 per year. So we have to go for the meat consumption because just the meat production produces 10% of the CO2 and contributes to the climate change. So also one air travel it produces 4 tons of CO2 and these are the big fish. Okay sure we see with corona we can do with digital technology a lot of with our travel. Driving cars per person is 1.5 tons CO2 per year which is 3 times as much as people in Bangladesh. Also German home produces about 4 times that much of CO2 as people in India. With an energy car you would also reduce your emissions by 1 ton per year. A photovoltaic installation would be sufficient. And you don't need your own home you can use your balcony. So actually there ways we could do if we want to. Really important is that the government is making the policies we need because people actually need to be forced to the solution sometimes. So we need the politicians. Next year here in Germany there will be general elections and it's important that it would be a big point in the election decision how is this done to climate change. So I think a good example for how we can manage to do big things is John of Kennedy said we choose to go to the moon in 1962. Give an example this time we used punch card computers. So this was a really really big challenge back then because you have to hit the moon. People said this will cost money and it's really really difficult. But people's government said yes we pay this. We do this and we pay what has to be paid to reach the moon. The US alone paid 3 billion dollars to reach the moon. And if we would do the same for the future of our species of humans then we have a solution. We should make climate change to our new man on the moon challenge. We shouldn't wait now. We have to act. So with this thanks for your attention. Here are a few links where you can see all this compact information that I give you in a bit more extensive way. For instance on my website on my YouTube channel and from three years from for three months now there's a podcast from with me. So thanks for your attention and I hope that there's a bit of time to discuss this topic. Herzlichen Dank Volker. Thank you. Volker, this was a lot of information. So if this is actually so important why isn't it done? So we see there are two points. For instance, there is the thing like with Corona the people who think it's all all crazy and lies. There are also the people who deny climate change. And this is a problem. For instance with the AfD here in Germany if you tell the people you don't have to decrease your consumption then people will vote for them and so the big parties like CDU, SPD people will actually vote for these people. So and therefore you see that in terms of renewable energies CDU campaigns are pretty much the same as with AfD campaign. So right populists here in Germany they also aren't familiar with it. So what can so people are asking how to use combustion engines with climate change? No, there is no way for this. So also for the car manufacturers this is a problem because they produce the cars. For we have the petrol scandal a few years ago. This was a good thing because it brought them a bit a step forward and they now have electric cars. But also there is the things like energy companies and here the energy companies have long running contracts to use fossil fuels. And if they break this contract then it's a problem for them. These are old legacy problems and of course it's also nice to travel by airplane to holiday. Last year 2019 3% were traveling by airplane 97% didn't travel by airplane. But if in Germany we say that flying away to holiday is not an option anymore then that is a threat to the elections. Okay, I understand. The political aspect is a big topic. You mentioned briefly nuclear energy. It's very clean, why are we not used again? Well, it's clean when we don't have a problem but we've seen that problems to occur. When I was growing up we did have problems. So it's clean up to a point. There's no CO2 but you still have an incredibly long legacy. Let's ignore the risk. Let's just say we let's say we manage the risk and the long term. But everything is against it anyway. Nuclear energy covers 3-4% of electricity. 3% is nothing. Burning wood has more. So really it's not a topic. We would have to build hundreds of new nuclear facilities in Europe. Next point is nuclear energy is very expensive. We're building two new one in Finland, one in Britain. Britain has restarted. It's three times as expensive as wind and solar. The dangerous technology is expensive to build. It has a very small fraction. And the fissile material is not really available widely. If we suddenly start building 5,000 nuclear facilities then we'll use up all the uranium and then we have to look for the stuff. We have to start hoping for fusion which we'll never know whether it works. For me, nuclear energy is an excuse not to change anything. Let's just keep them running and then I can continue to fly to my vacation. Actually, it's not enough. Of course, the society doesn't like change. How can we move this topic more into the center of society so that people get an awareness? Also, ich denke, im letzten Jahr hat wahnsinnig viel dazu beigetragen. The last year has helped a lot to create awareness. In 2018 we were very frustrated. We've not been publicizing only since Friday's for Future. We've been doing it longer for the last 20 years. None of this is new. 2-3 Jahre ago, wir sagten nach links und die Bundesregierung geht nach rechts. Wir sagten, wir gehen nach links und die Regierung geht nach rechts. Das war unsere Impression. Wir hatten 2 Experienzen, die Gamechangers waren. Also, das war 2018. 2019, letztes Jahr, eine Interview mit dem Frontal 21. Im Jahr 2020. Also, ich gehe nach Süden. Ich bin da. Also, da ist ein lot happening. In Australia, Australia ist das größte Export von Kohlen. Aber, due to the big wildfires, there's a change of mind. Also, in other countries, there are moves to act on climate change. So, aber wir also are misstures, because also, wir in der climate movement, we produce CO2, and lots of CO2. May I shortly interrupt, we have a lot of questions here. Just a little bit, because this is very interesting, and there are a lot of questions, we would like to overdo all the time. So, just a few sounds. Do you really think we'll get the curve? Yes, it would be possible. So, if there's, if you ask me, is there the technology, can we do it? I would say yes. Second question, can we pay for it? And if I look on corona, I would say yes. So, we can say two times yes. And if you ask, are we ready for it? I would sadly say no. But this is a psychological problem and a political problem. But if we can solve this, if we can solve this, I don't know. But, for instance, if there is a asteroid on collision course to Earth, we wouldn't say yes. So, we can find a solution. So, I interrupt again. On technical questions, how is it about sustainability of solar energy panels? So, how long are they, how long can they be used or what's about recycling of them? So, yes, of course. Everything, everything, so, yes, of course. Every technology has a footprint and also renewable energies have renewable footprints. This is not zero, but it's ten times smaller than fossil fuels and conventional energy. And you have to think about this. You have to try to get it under control. Silicon is a resource also among materials really resources. For instance, for wind energy, copper and steel. The rotors are from CFK. They have recycling problems. You also can, of course, can recycle the steel from the tower. So, if you compare it, cars can't be recycled fully. So, this is a problem. There are problematic resources in there. So, we have to think about it. Another argument or question on the materials and resources. What's about the batteries? What's about their lifetime? What's about their recycling? Are there problems that have been made? Yes, definitely. In terms of batteries, we are in the stone age. So, for instance, you have solid-state batteries which have a factor of 10 better energy efficiency. In 10 years, I think about today's battery technology, we would just love. I think the prices will go down, but batteries will become better. Because of this, I think we'll see a dynamic development. In comparison to the combustion engine, you can relativise this, but for instance, there are cobalt-free batteries in the development. So, we will have a lot of progress. Another topic which wasn't discussed so far. What about geothermal energy? Yes, right. Geothermal energy is very interesting. For instance, Eastland or Turkey. But here in Germany, geothermal energy is very deep in the earth. We have to dig for 3-4 km and 1 km costs about a million euros. So, this is very expensive. Therefore, geothermal energy can be used in Germany, but it's much more expensive than the other forms of renewable energies. But you can use it, in the Rhine area, in Bavaria, in a lot of places in Germany. It's not a good idea. It's not feasible. How about CO2 emissions you spoke about? Is the reduction real or is it just that we exported our footprint to China, for example? Yes, in parts. For instance, there is a steel production plant here in Germany and exported to China. Then our emissions go down and there is a small part in the reduction from this, but there are no real numbers on this. I think that the decreasing emission is actually real because we see there are power plants, coal plants which are turned off and yes, energy change cause decrease in emissions but also other factors play in. But these factors are just a smaller part. Another question. What's black roads due to the absorption of energy from sunlight on Earth? Ja, also was doing this on solar models. Yes, if you build solar modules, it depends on where you build them. If you put them on a roof, then they are black then the roof already is black so it already already absorbs a lot of energy so there won't be a difference but if you put them in a sand desert then it's becoming a bit darker, obviously parts of that energy is also converted to electrical energy so yes, there is an impact on the balance of the energy balance of the earth but it's small but if you for instance look at Germany 13% of land area is made so in comparison to our other infrastructure impact from renewable energies on the energy balance would be magnifiable. So, what about solar workways? Yes, they tried this but I don't know if it's a good idea because there is oppression from the tires on the street and yes, it's a very difficult to do and it needs to resist heavy loads so don't think that's a resolution So, how about recycling of solar modules? So, a counterargument would be it can't be recycled so solar modules can actually be recycled they are milled down to very small parts and then the essential resources like silicon aluminium silver can be recovered some parts can't be recovered like plastics but the rest is really good in recycling Okay, so the last question How can you prevent politicians from pushing the solution to the future like 2030, 2040, 2050 what can we actually do? Yeah therefore, actually Fridays for Future help a lot so the government set the deadline to 2030, 2030 is not that much away so it's about 10 years so we actually will see very fast if we are actually on track still Germany needs to improve policies but actually we will see fast what's happening so this pushing to the future won't be working anymore for instance also for the European Union there's legislation which says 2030 we need to be climate neutral and now we have to ask the question what's happening very frequently so for instance just go to your member of parliament yes for instance go to your local member of parliament ask them if you want to have my vote next year what are you doing on climate change how do you how do you want to achieve the European Union's goals for climate change in 2030 of course then a lot of times you get a lot of warm words but yeah just ask so from now we have 3 quarters of a year to the general election in Germany we need to be we need to ask them and push them so thank you for your talk thanks for the invitation and have a lot of fun for the rest of the conference