The U.S.: A Nation Divided By Drought
What was once a coast-to-coast drought now divides the U.S. into two distinct pieces, pitting the water haves, in the Midwest, versus the have-nots, in the West. One of those regions is in for a long, hot, dry, and potentially smoky summer. (Hint: It's not the Midwest.)… Read More
Smaller Glaciers Boost Sea Level as Much as the Giants
As the planet warms under the influence of rising greenhouse gases, and melting ice drives sea level higher, scientists have focused mostly on changes in the vast ice sheets that cover Greenland and Antarctica. If either one melts substantially or slides into the ocean, the results would be catastrophic. But there’s another ice reserve to worry … Read More
As Oceans Warm, Fish Are Finding New ZIP Codes
The study, published Wednesday in the journal Nature, employs a novel index that creates a fish thermometer of sorts, teasing out evidence of population shifts from fishery catch records during the past four decades. The study is the first to detect climate change-related shifts in the range of fish species on a global scale. In doing so, it provid… Read More
Warming Could Slash Species’ Habitat Ranges in Half
Vast numbers of plant and animal species could see their ranges slashed in half later this century as a result of climate change, according to a study in Nature Climate Change. The result, say the authors, could be serious ecosystem disruptions along with the loss of so-called “ecosystem services,” such as the purification of air and water; erosion… Read More
Amazon May Lose 65 Percent of Land Biomass by 2060
There will be no winners if agriculture made possible by widespread felling in the Amazon continues to expand, say researchers from Brazil and the U.S. They calculate that the large-scale expansion of agriculture at the expense of the forest could entail the loss of almost two-thirds of the Amazon’s terrestrial biomass by later this century … Read More
Carbon Dioxide Passes 400 PPM Milestone, NOAA Finds
Climate scientists recognize this 400 ppm mark as a symbolic milestone, illustrating the rapid increase of human-caused CO2 emissions over the past century. Numerous other climate data, gleaned from ice cores, ocean sediment, and other sources show that this is the highest CO2 concentration in the air in all of modern human history, possibly as far… Read More
In Parched Southwest, Anxious Wait for Summer Rains
However, if the past two summer monsoon seasons are any guide to what’s ahead, meaningful drought relief may be wishful thinking. “Another dry monsoon could be devastating,” said Victor Murphy, a climate services program manager with the National Weather Service.… Read More
Greenland’s Ice Loss May Slow, But Coasts Still At Risk
The flow of Greenland’s glaciers toward the sea may have increased significantly in the past decade, but a new report in Nature finds that rate of increase is unlikely to continue. “The loss of ice has doubled in the past 10 years, but it’s not going to double again,” said lead author Faezeh Nick, a glaciologist at the University Centre in Svalbard… Read More
