climate change...

[robycop3]

Here is a very interesting article. It may answer some questions asked here:

THE MYTH OF THE 1970s GLOBAL COOLING SCIENTIFIC CONSENSUS in: Bulletin of the American Meteorological Society Volume 89 Issue 9 (2008)

I can't upload the pdf, but the link is above.

I'm old enough to remember when that rumor was rife. And, given my study of history, I find it hard to believe man is causing climate change now, when man didn't cause it 100-150 years ago.

 

[OnlyaSinner]

I'm old enough to remember when that rumor was rife. And, given my study of history, I find it hard to believe man is causing climate change now, when man didn't cause it 100-150 years ago.

I don't have the exact numbers handy, but I think the recent rise in atmospheric CO2 began back then, and since that greenhouse gas persists for a long time in the air, its proportion is cumulative. And despite all the coal-fired heating, locomotives, factories in the 1800s, today's cars, trucks, airplanes and all fossil fuel consumption is undoubtedly adding more CO2 than back then. The world population passed the one billion mark in the 1880s and now it's more than seven times that, so even with modern pollution controls (mostly in 1st-world countries) the GHG load is increasing. The air at Mauna Loa doesn't lie.

 

[kyredneck]

I don't have the exact numbers handy, but I think the recent rise in atmospheric CO2 began back then, and since that greenhouse gas persists for a long time in the air, its proportion is cumulative. And despite all the coal-fired heating, locomotives, factories in the 1800s, today's cars, trucks, airplanes and all fossil fuel consumption is undoubtedly adding more CO2 than back then. The world population passed the one billion mark in the 1880s and now it's more than seven times that, so even with modern pollution controls (mostly in 1st-world countries) the GHG load is increasing. The air at Mauna Loa doesn't lie.

Carbon Dioxide Fertilization Greening Earth, Study Finds

"From a quarter to half of Earth’s vegetated lands has shown significant greening over the last 35 years largely due to rising levels of atmospheric carbon dioxide, according to a new study published in the journal Nature Climate Change on April 25.

An international team of 32 authors from 24 institutions in eight countries led the effort, which involved using satellite data from NASA’s Moderate Resolution Imaging Spectrometer and the National Oceanic and Atmospheric Administration’s Advanced Very High Resolution Radiometer instruments to help determine the leaf area index, or amount of leaf cover, over the planet’s vegetated regions. The greening represents an increase in leaves on plants and trees equivalent in area to two times the continental United States." …"

 

[OnlyaSinner]

Increased rates of tree growth has been noted in numerous studies in the US.