03 May 2012:
Plant Responses to Global Warming
Studies designed to predict how plants and trees will react to rising temperatures have consistently underestimated those responses
, with the actual flowering and leafing of plants advancing far more rapidly than most experiments forecast. That is the conclusion of new research by Canadian and U.S. scientists who analyzed 50 plant studies on four continents. By looking at field records of the timing of plant events, the researchers found that leafing and flowering advance by nearly a week for every 1 degree C rise in temperature. But when scientists create experimental plots and heat them to simulate future temperature increases, their predictions usually under-predict plant responses to global warming by at least four-fold, according to the study, published in an online issue of Nature
. The timing of annual plant events, known as phenology, has major implications for crop pollination, water supplies, and ecosystem health. The researchers said that plant experiments need to be better designed to reflect the actual impact of future warming. “These results are important because we rely heavily on these experiments to predict what will happen to communities and ecosystems in the future,” said NASA climatologist Ben Cook, who took part in the study.
Yale Environment 360 is
a publication of the
Yale School of Forestry
& Environmental Studies
Yale Environment 360
articles are now available in Spanish and Portuguese on Universia
, the online educational network. Visit the site.
Business & Innovation
Policy & Politics
Pollution & Health
Science & Technology
Antarctica and the Arctic
Central & South America
A look at how acidifying oceans could threaten the Dungeness crab, one of the most valuable fisheries on the U.S. West Coast. Watch the video.
is now available for mobile devices at e360.yale.edu/mobile
An aerial view of why Europe’s per capita carbon emissions are less than 50 percent of those in the U.S. View the photos.
An indigenous tribe’s deadly fight to save its ancestral land in the Amazon rainforest from logging. Learn more.
video series looks at the staggering amount of food wasted in the U.S. – a problem with major human and environmental costs. Watch the video.
Residents of the Chocó Rainforest in Ecuador are choosing to plant cacao over logging in an effort to slow deforestation.
Watch the video.
Tribal people and ranchers join together to stop a project that would haul coal across their Montana land. Watch the video.