The Fall of the Maya: 'They Did it to Themselves'
For 1200 years, the Maya dominated Central America. At their peak around 900 A.D., Maya cities teemed with more than 2,000 people per square mile -- comparable to modern Los Angeles County. Even in rural areas ...
Climate change to continue to year 3000 in best case scenarios: research
New research indicates the impact of rising CO2 levels in the Earth's atmosphere will cause unstoppable effects to the climate for at least the next 1000 years, causing researchers to estimate a collapse of the West Antar ...
Scientists narrow global warming range
(Phys.org) —Australian scientists have narrowed the predicted range of global warming through groundbreaking new research.
Small volcanic eruptions partly explain 'warming hiatus'
The "warming hiatus" that has occurred over the last 15 years has been partly caused by small volcanic eruptions.
A human-caused climate change signal emerges from the noise
By comparing simulations from 20 different computer models to satellite observations, Lawrence Livermore climate scientists and colleagues from 16 other organizations have found that tropospheric and stratospheric temperature ...
Scientists solve mystery of ancient American lakes
(Phys.org) —A new study by Stanford scientists solves a longstanding mystery of how ancient lakes in the western United States grew to such colossal sizes.
Warming climate may spread drying to a third of Earth, says study
Increasing heat is expected to extend dry conditions to far more farmland and cities by the end of the century than changes in rainfall alone, says a new study. Much of the concern about future drought under ...
Rising oceans - too late to turn the tide?
Melting ice sheets contributed much more to rising sea levels than thermal expansion of warming ocean waters during the Last Interglacial Period, a UA-led team of researchers has found. The results further ...
Causes of California drought linked to climate change
The atmospheric conditions associated with the unprecedented drought currently afflicting California are "very likely" linked to human-caused climate change, Stanford scientists say.
Study reveals seasonal patterns of tropical rainfall changes from global warming
Projections of rainfall changes from global warming have been very uncertain because scientists could not determine how two different mechanisms will impact rainfall. The two mechanisms turn out to complement ...
As climate changes, boreal forests to shift north, relinquish more carbon than expected
It's difficult to imagine how a degree or two of warming will affect a location. Will it rain less? What will happen to the area's vegetation? New Berkeley Lab research offers a way to envision a warmer future. It maps how ...
Extreme summer temperatures occur more frequently: study
(PhysOrg.com) -- Extreme summer temperatures are already occurring more frequently in the United States, and will become normal by mid-century if the world continues on a business as usual schedule of emitting ...
A hard rain's gonna fall: Analysis shows climate change to yield more extreme rainfall
(PhysOrg.com) -- Heavier rainstorms lie in our future. That's the clear conclusion of a new MIT and Caltech study on the impact that global climate change will have on precipitation patterns.
Study predicts an ice-free Arctic by the 2050s
(Phys.org) —Accelerated climate warming propelled by greenhouse gas emissions could bring an ice-free September to the Arctic by 2054, a University at Albany scientist predicts.