Conservationists try to protect ecologically rich Alabama delta from development, climate change - Yahoo! Voices
Conservationists try to protect ecologically rich Alabama delta from development, climate change
Glaciers that covered much of North America never reached Alabama, which helped produce one of the world's most diverse ecosystems. Now, conservationists are working to protect this 470-square-mile delta from climate change and development. (AP Video by Stephen Smith)
Related Knowledge Center: Climate science
What began as a theory in the 1890s — that industrial emissions of carbon dioxide could increase global temperatures — had progressed to a scientific fact a century later. Scientists across a range of disciplines are studying the impact of the still-growing concentration of carbon dioxide and other so-called “greenhouse gases” in the atmosphere as they call for industrial and governmental policies to slow, then halt, the warming of the planet.