Warming Walden

More than 150 years later, researchers are using Henry David Thoreau's meticulous records to gather evidence of how the climate has warmed in the area of Walden Pond. http://www.sciencentral.com/video/

Category:

Science & Technology

Tags:

• sciencentral
• Thoreau
• Walden
• Pond
• Nature
• Climate-change
• environment
• early-spring
• Warming-Walden
• Boston
• Henry
• David
• global-warming

[SuperAtheist]

"climate change is already happening"

climate change has been happening for the last 15,000 years!

is our calendar perfect?

[nephil1977]

The question we now have to ask is, "are we going to play Russian roulette with the future?" The Earth's climate is going to change, and drastically. The geological record shows wild swings in climate over it's 4.5 billion year history, but they happen over deep time. We shouldn't desire to speed up the process before we are technologically capable of dealing with the consequences.

[P00ky123]

did he just say project buttburst?

[P00ky123]

did he just say project buttburst?

[nephil1977]

Why are people still debating this? There is a demonstrated linear correlation between temperature and CO2 (it lags by a few centuries, but they track in parallel.) Ice cores have shown that the CO2 levels have been relatively stable for 15,000 years, hence the reason humanity has been able to become agrarian, then urban, and now technological. In the last 200 years, CO2 has risen more rapidly than in the last 600,000 years, and it coincides with human industrial activity. It is man made.

[nnebeel]

Did Thoreau measure Mars's surface temperature, too? I mean, I know he was ahead of his time... But I never knew....

[Repoes]

"The current temperature is the same as it was 12 years ago, and there are signs that it is actually going -down- now (because of sun activity. who'da thunked it?). "

... This is understood among experts (climate scientists are actually smart enough to take the solar cycle into account. who'da thunk it?).

[Komodo1987]

1st: I'm sorry.

2nd: I think you could call the global warming a scientific theory, but I think it looks to you more like a hypothesis, right?

3rd: I think, scientist know about the possible sources of error. And we can proof the data with dendrochronology, I guess. If the temperature doesn't match the growing rings of the local trees, the measuring wasn't maintained properly.

[SuperAtheist]

1st I don't believe in any scientific theory! I accept many scientific theories as the best explanation of the facts.

2nd what scientific theory are you referring to?

3rd "the warming itself"

- many of the temperature measuring stations are placed in cities and/or not maintained properly, and the accuracy is much better today than in the past.

what was the accuracy of the tools use in the early 20th century? do we still have those tools available for comparison?

[Komodo1987]

Wikipedia has tons of references for their global warming article. Why don't you just look there for the beginning?

But I'm wondering, why do people not believe in a specific scientific theory, but still believe in other scientific theories? Why don't you believe in the global warming, even the warming itself, I'm not really talking about human influence here, but do believe in others like general relativity?

Did you buy a SUV and are just pissed, or what? ;-)