Navigation Links
NASA study links Earth impacts to human-caused climate change
Date:5/14/2008

WASHINGTON -- A new NASA-led study shows human-caused climate change has made an impact on a wide range of Earth's natural systems, including permafrost thawing, plants blooming earlier across Europe, and lakes declining in productivity in Africa.

Cynthia Rosenzweig of NASA's Goddard Institute for Space Science in New York and scientists at 10 other institutions have linked physical and biological impacts since 1970 with rises in temperatures during that period. The study, to be published May 15 in the journal Nature, concludes human-caused warming is resulting in a broad range of impacts across the globe.

"This is the first study to link global temperature data sets, climate model results, and observed changes in a broad range of physical and biological systems to show the link between humans, climate, and impacts," said Rosenzweig, lead author of the study.

Rosenzweig and colleagues also found the link between human-caused climate change and observed impacts on Earth holds true at the scale of individual continents, particularly in North America, Europe, and Asia.

To arrive at the link, the authors built and analyzed a database of more than 29,000 data series pertaining to observed impacts on Earth's natural systems. The data were collected from about 80 studies, each with at least 20 years of records between 1970 and 2004.

Observed impacts included changes to physical systems, such as glaciers shrinking, permafrost melting, and lakes and rivers warming. Biological systems also were impacted in a variety of ways, such as leaves unfolding and flowers blooming earlier in the spring, birds arriving earlier during migration periods, and plant and animal species moving toward Earth's poles and higher in elevation. In aquatic environments such as oceans, lakes, and rivers, plankton and fish are shifting from cold-adapted to warm-adapted communities.

The team conducted a "joint attribution" study. They showed that at the global scale, about 90 percent of observed changes in diverse physical and biological systems are consistent with warming. Other driving forces, such as land use change from forest to agriculture, were ruled out as having significant influence on the observed impacts.

Next, the scientists conducted statistical tests and found the spatial patterns of observed impacts closely match temperature trends across the globe, to a degree beyond what can be attributed to natural variability. The team concluded observed global-scale impacts are very likely because of human-caused warming.

"Humans are influencing climate through increasing greenhouse gas emissions," Rosenzweig said. "The warming is causing impacts on physical and biological systems that are now attributable at the global scale and in North America, Europe, and Asia."

On some continents, including Africa, South America, and Australia, documentation of observed changes in physical and biological systems is still sparse despite warming trends attributable to human causes. The authors concluded environmental systems on these continents need additional research, especially in tropical and subtropical areas where there is a lack of impact data and published studies.


'/>"/>

Contact: Steve Cole
stephen.e.cole@nasa.gov
202-358-0918
NASA/Goddard Space Flight Center
Source:Eurekalert

Related biology news :

1. Window of opportunity for restoring oaks small, new study finds
2. BBVA Foundation international study on attitudes to stem cell research
3. Mouse study: When it comes to living longer, its better to go hungry than go running
4. Study finds possible connection between marijuana abuse and stroke or heart attacks
5. Study supports reason for concern in childhood and adolescent obesity
6. Federal polar bear research critically flawed, says study in INFORMS journal
7. Study shows mercury levels from products decreasing, though still at dangerous levels
8. Unmanned aircraft to study Southern California smog and its consequences
9. A study reveals how cells communicate to activate the cell division machinery
10. Decoding the dictionary: Study suggests lexicon evolved to fit in the brain
11. Bison can thrive again, study says
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/11/2017)... , April 11, 2017 Crossmatch®, a ... authentication solutions, today announced that it has been ... Research Projects Activity (IARPA) to develop next-generation Presentation ... "Innovation has been a driving force ... program will allow us to innovate and develop ...
(Date:4/6/2017)... 2017 Forecasts by Product Type ... by End-Use (Transportation & Logistics, Government & Public Sector, ... Fossil Generation Facility, Nuclear Power), Industrial, Retail, Business Organisation ... Are you looking for a definitive report on the ... ...
(Date:4/4/2017)... 2017   EyeLock LLC , a leader of ... States Patent and Trademark Office (USPTO) has issued U.S. ... of an iris image with a face image acquired ... company,s 45 th issued patent. ... given the multi-modal biometric capabilities that have recently come ...
Breaking Biology News(10 mins):
(Date:4/28/2017)... , ... April 28, 2017 , ... While things have ... to restructure the company and provide a new outlook for the future. As ... to implement new management with the retirement of Mr. Siegel as CEO. With the ...
(Date:4/27/2017)... SILVER SPRING, Md. and RESEARCH ... -- United Therapeutics Corporation (NASDAQ: UTHR ) ... repurchase of up to $250 million of the company,s ... will remain open through December 31, 2017. Purchases may ... or in privately negotiated transactions from time to time ...
(Date:4/27/2017)... ... April 27, 2017 , ... Proscia ... their digital pathology technology has the potential to eliminate subjectivity in the detection ... The Netherlands as part of the 2017 ISBI CAMELYON Digital Pathology Challenge, ...
(Date:4/27/2017)... , ... April 27, 2017 , ... ... and secure electronic informed consent (eConsent) solution that simplifies research studies, accelerates study ... consulting division of Quorum, Q Consent™ is the first and only IRB-integrated ...
Breaking Biology Technology: