Church of Global Warming - Part 2 of 6

A comprehensive review of the science, politics and economics of Global Warming

Category:

Education

Tags:

• Global Warming
• Climate Change

[checkyoursources]

@climatereview Satellites have observed an increase in atmospheric water vapour by about 0.41 kg/m² per decade since 1988.A detection and attribution study,("fingerprinting"),was employed to identify the cause (Santer 2007).It found the recent increase in moisture content is not due to solar forcing or gradual recovery from the 1991 eruption of Mount Pinatubo.The primary driver of 'atmospheric moistening' was found to be the increase in CO2 caused by the burning of fossil fuels.

[checkyoursources]

@climatereview "historically successfully sustained" -When CO2 levels were higher in the past, solar levels were also lower. The last time CO2 was similar to current levels was around 3 million years ago, during the Pliocene. The CO2 levels remained at around 365 to 410 ppm for thousands of years. Arctic temperatures were 11 to 16°C warmer (Csank 2011). Global temperatures 3 to 4°C warmer than pre-industrial temperatures. Sea levels were 25m higher than currently(Dwyer 2008).

[climatereview]

@checkyoursources Nothing is conclusive, but there is evidence for: 1) sunspot activity has been increasing for 400 years "Sunspot Numbers.png" 2) solar flares reduce cosmic rays "CosmicRaysAndSunspotsMonthlyS­ince195801.gif" 3+4+5) cosmic rays act as cloud condensation nuclei "CERN Cloud experiment" 6) Total cloud cover is less relevant to where and what type they are "cloud feedbacks remain the largest source of uncertainty” (IPCC 2007)

[climatereview]

@checkyoursources

Ocean acidification could be a worry.

However, considering that today's 380ppm or even the IPCC predicted, disaster scenario of a doubling in a 100 years is nothing compared to what the Earth has successfully sustained historically.

Currently, we are at a massive 15x lower CO2 than the major ICE age of 450million years ago.

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(600 million years of CO2 and temp)

[checkyoursources]

@climatereview For svensmark to be right he would need to pass these, yet it passes only number 4

1)Solar magnetic field must be getting stronger

2) The number of cosmic rays reaching Earth must be dropping

3) Cosmic rays must successfully seed clouds, which requires:

4) Cosmic rays must trigger aerosol (liquid droplet) formation

5) These newly-formed aerosols must grow sufficiently through condensation to form cloud-condensation nuclei (CCN)

6) Cloud cover on Earth must be declining

[checkyoursources]

@Researchrules Decline in global net primary production - the amount of carbon absorbed by plants (Zhao 2010)

[checkyoursources]

@Researchrules Photosynthetic inhibition after long-term exposure to elevated levels of atmospheric carbon dioxide Photosynthesis Research

Volume 7, Number 2, 175-184, Delucia et al.

Increased mortality rates of healthy trees in Western U.S. forest (Pennisi 2009)

More severe and extensive vegetation die-off due to warmer droughts (Breshears 2009)

[checkyoursources]

@Researchrules Most of the 4.5 billion years of Earths history is irrelvent to what the best explanation for the current warming is. I cannot emphasise this enough. What is relevant to what has happened since the 1970's? the period just before it, not what happened 10,000 years ago or more!

[checkyoursources]

@climatereview Predictions aren't needed when you are trying to gauge what effect humans have had since the 1970's. You just need observations and explanations. Concerning fisheries I was concerned not just about catches but about acidification of the oceans that has knock on long term damage to fish populations etc

[climatereview]

@checkyoursources

Ai, there is a healthy (for once) debate about the high profile, CLOUD experiment results.

"While I have been skeptical of Svensmark’s cosmic ray theory up until now, it looks like the evidence is becoming too strong for me to ignore. The following results will surely be controversial." (satellite data guru, Roy Spencer)

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"Spencer Indirect Solar Forcing of Climate"