climate models

Does Global Warming Lead To A Change In Upper Atmospheric Transp...

ScienceDaily  Tue, 12/23/2008 - 23:15

Most atmospheric models predict that the rate of transport of air from the troposphere to the above lying stratosphere should be increasing due to climate change.

Surprisingly, an international group of researchers has now found that this does not seem to be happening. On the contrary, it seems that the air air masses are moving more slowly than predicted.

This could also imply that recovery of the ozone layer may be somewhat slower than predicted by state-of-the-art atmospheric climate models.


 

Science paper examines role of aerosols in climate change

EurekAlert! - Chemistry, Physics and Materials Sciences  Thu, 09/04/2008 - 22:00

(International Geosphere-Biosphere Programme) It appears that aerosol effects on clouds can induce large changes in precipitation patterns, which in turn may change not only regional water resources, but also may change the regional and global circulation systems that constitute the Earth's climate.

A group of scientists affiliated with the International Geosphere-Biosphere Program have proposed a new framework to account more accurately for the effects of aerosols on precipitation in climate models.


 

Climate Change Science Program Issues Report On Climate Models

ScienceDaily  Fri, 08/01/2008 - 09:15

A new report evaluates computer models of the Earth's climate and their ability to simulate current climate change.


 

Apparent Problem With Global Warming Climate Models Resolved

ScienceDaily  Fri, 05/30/2008 - 13:30

Yale University scientists may have resolved a controversial glitch in models of global warming: A key part of the atmosphere didn't seem to be warming as expected.

Computer models and basic principles predict atmospheric temperatures should rise slightly faster than, not lag, increases in surface temperatures.

Also, the models predict the fastest warming should occur at the Tropics at an altitude between eight and 12 kilometers.


 

Climate Models Look Good When Predicting Climate Change

ScienceDaily  Sun, 04/06/2008 - 06:00

The accuracy of computer models that predict climate change over the coming decades has been the subject of debate.

A new study by meteorologists shows that current climate models are quite accurate and can be valuable tools for those seeking solutions on reversing global warming trends.

Most of these models project a global warming trend that amounts to about 7 degrees Fahrenheit over the next 100 years.


 

Models look good when predicting climate change

EurekAlert! - Mathematics and Statistics  Tue, 04/01/2008 - 22:00

The accuracy of computer models that predict climate change over the coming decades has been the subject of debate.

A new study by meteorologists at the University of Utah shows that current climate models are quite accurate and can be valuable tools for those seeking solutions on reversing global warming trends.

Most of these models project a global warming trend that amounts to about 7 degrees Fahrenheit over the next 100 years.


 

Climate Change And Human Hunting Combine To Drive The Woolly Mam...

ScienceDaily  Tue, 04/01/2008 - 15:00

Climate models together with population models provide quantitative evidence that the combined effects of climate change and anthropogenic pressures can explain the extinction of the woolly mammoths.


 

Arctic Climate Models Playing Key Role In Polar Bear Decision

ScienceDaily  Wed, 03/12/2008 - 06:00

The pending federal decision about whether to protect the polar bear as a threatened species is as much about climate science as it is about climate change.

The U.S. Fish and Wildlife Service is currently considering a proposal to list the polar bear as a threatened species under the Endangered Species Act, a proposal largely based on anticipated habitat loss in a warming Arctic.


 

Busy Beavers Can Help Ease Drought

ScienceDaily  Tue, 02/26/2008 - 07:00

They may be considered pests, but beavers can help mitigate the effects of drought. Climate models predict the incidence of drought in parts of North America will increase in frequency and length over the next 100 years, and beaver will likely play an important role in maintaining open water and mitigating the impact.