News tagged with changing weather

Time of year important in projections of climate change effects on ecosystems

(PhysOrg.com) -- Does it matter whether long periods of hot weather, such as last year's heat wave that gripped the U.S. Midwest, happen in June or July, August or September?

Space & Earth / Environment

created 6 hours ago | popularity 4.8 / 5 (4) | comments 0 | with audio podcast

Humans may have helped the decline of African rainforests 3000 years ago

(PhysOrg.com) -- Large areas of rainforests in Central Africa mysteriously disappeared over three thousand years ago, to be replaced by savannas. The prevailing theory has been that the cause was a change ...

Space & Earth / Environment

created Feb 10, 2012 | popularity 4.1 / 5 (15) | comments 21 | with audio podcast report

Political leaders play key role in how worried Americans are by climate change: study

More than extreme weather events and the work of scientists, it is national political leaders who influence how much Americans worry about the threat of climate change, new research finds.

Space & Earth / Environment

created Feb 06, 2012 | popularity 5 / 5 (8) | comments 81

Tree rings may underestimate climate response to volcanic eruptions: study

Some climate cooling caused by past volcanic eruptions may not be evident in tree-ring reconstructions of temperature change because large enough temperature drops lead to greatly shortened or even absent growing seasons, ...

Space & Earth / Earth Sciences

created Feb 05, 2012 | popularity 3.7 / 5 (3) | comments 22 | with audio podcast

Britain ranks top risks posed by climate change

(AP) -- Britain says coastlines, wildlife and even the nation's most famous dish are under threat from climate change in its first-ever national assessment of likely risks.

Space & Earth / Environment

created Jan 26, 2012 | popularity 3.5 / 5 (4) | comments 0

Climate and the statistics of extremes

(PhysOrg.com) -- Swiss mathematicians have shown that the risk of extreme climate events is largely underestimated. They are developing a model for better understanding the impact of climate change.

Space & Earth / Earth Sciences

created Jan 18, 2012 | popularity 3.9 / 5 (7) | comments 20

Tropical clouds hold clues for the global water cycle

(PhysOrg.com) -- To study the wellspring of atmospheric water, you have to start with tropical clouds. Scientists at Pacific Northwest National Laboratory showed that global climate models are not accurately ...

Space & Earth / Earth Sciences

created Jan 16, 2012 | popularity 5 / 5 (3) | comments 1

China looks at carbon tax, official says in US

China's lead negotiator on climate change said Wednesday that the world's largest emitter is considering imposing a tax on carbon to reduce the use of dirty energy as its economy grows.

Space & Earth / Environment

created Jan 11, 2012 | popularity 3.7 / 5 (6) | comments 12

Colorado mountain hail may disappear in a warmer future: study

Summertime hail could all but disappear from the eastern flank of Colorado's Rocky Mountains by 2070, according to a new modeling study by scientists from NOAA and several other institutions.

Space & Earth / Environment

created Jan 08, 2012 | popularity 3.7 / 5 (6) | comments 5 | with audio podcast

The high winds of the upper atmosphere contain less renewable energy than previously assumed

It seems that the energy mix of the future will have to differ from the current suggestions of some visionaries. This is because the jet streams that sweep the upper atmosphere with high winds would yield ...

Technology / Energy & Green Tech

created Dec 12, 2011 | popularity 4.7 / 5 (6) | comments 24 | with audio podcast

Billion-dollar weather disasters smash US record

(AP) -- America's wild weather year has set another record: a dozen billion-dollar catastrophes.

Space & Earth / Environment

created Dec 07, 2011 | popularity 4.5 / 5 (8) | comments 37

UN chief to open ministers level at climate talks

(AP) -- An international treaty on climate change won't be enough to avert a dangerous rise in global temperatures, and countries need to voluntarily make deeper cuts in carbon emissions, the head of the ...

Space & Earth / Environment

created Dec 06, 2011 | popularity not rated yet | comments 0

People matter in climate change models

Climate change does not discriminate among regions or their inhabitants, but the continued growth of the human population will most likely contribute to the ill-effects of climate change. US researchers writing in the International Jo ...

Space & Earth / Environment

created Dec 05, 2011 | popularity 5 / 5 (1) | comments 0

Geoengineering could save Earth -- or destroy it

(AP) -- Brighten clouds with sea water? Spray aerosols high in the stratosphere? Paint roofs white and plant light-colored crops? How about positioning "sun shades" over the Earth?

Space & Earth / Environment

created Dec 02, 2011 | popularity 5 / 5 (2) | comments 13

When it comes to hurricanes, climate change effects may be 'a wash'

In some ways, hurricane season 2011, which ended Wednesday, seems to fit right in with the wild weather wreaking havoc in recent years - a string of severe floods, droughts and heat waves that the world's top climate scientists ...

Space & Earth / Earth Sciences

created Dec 01, 2011 | popularity 3.2 / 5 (5) | comments 12