Global Climate Change

Climate change has arrived and is making itself known. It’s been an extraordinary six weeks for climate scientists. Any lingering doubts about the immediacy of climate impacts on the lives of Americans are now permanently laid to rest, thanks to four extensive reports from thousands of scientists. It…

The world you grew up in is not going to be the same in 2100 if NASA’s climate change projections are correct. Ellen Stofan, NASA chief scientist, explained in a press release that the model isn’t meant to frighten anyone into going green, though the projections are quite mind-blowing. Rather, Stofan…

NASA conducts a program of breakthrough research on climate science, enhancing the ability of the international scientific community to advance global integrated Earth system science using space-based observations. The agency s research encompasses solar activity, sea level rise, the temperature of the…

Economic losses due to climate change today amount to more than $125bn a year — more than all the present world aid. The report comes from former UN secretary general Kofi Annan s thinktank, the Global Humanitarian Forum. By 2030, the report says, climate change could cost $600bn a year. Civil unrest…

Most climate scientists agree the main cause of the current global warming trend is human expansion of the greenhouse effect — warming that results when the atmosphere traps heat radiating from Earth toward space. Certain gases in the atmosphere block heat from escaping. Long-lived gases that remain…

Most climate scientists agree the main cause of the current global warming trend is human expansion of the greenhouse effect — warming that results when the atmosphere traps heat radiating from Earth toward space. Certain gases in the atmosphere block heat from escaping. Long-lived gases that remain…

Natural climate variability is extremely unlikely to have contributed more than about one-quarter of the temperature rise observed in the past 60 years, reports a pair of Swiss climate modelers in a paper published online December 4. Most of the observed warming—at least 74 percent—is almost certainly…

Americans are more concerned about the changing planet when the words global warming are used than when they hear climate change,new research finds. The two terms are often used synonymously, but new surveys reveal that they carry different connotations for many people, particularly African Americans…

When water warms up it expands. At the same time global warming causes polar ice sheets and glaciers to melt. The combination of these changes is causing sea levels to rise, resulting in flooding and erosion of coastal and low lying areas. Extreme weather, shifting rainfall Heavy rain and other extreme…