18 Aug 2014:
Recent Glacier Losses Are
Mostly Driven by Human Activity, Study Says
Artesonraju Glacier in Cordillera Blanca, Peru
Roughly one-quarter of the global glacier mass loss between the years 1851 and 2010 can be attributed to human activities, and that fraction increased to more than two-thirds between 1991 and 2010, according to
research published in the journal Science
. The study is the first to document the extent of human contribution to glacier mass loss, which is driven by both naturally caused climate factors, such as fluctuations in solar radiation, and anthropogenic influences. “In the 19th and first half of 20th century we observed that glacier mass loss attributable to human activity is hardly noticeable but since then has steadily increased,” lead researcher Ben Marzeion said. The analysis was based on data from the recently established Randolph Glacier Inventory and included all glaciers outside of Antarctica. Changes in glaciers in the Alps and North America were particularly well documented and seem to be definitively influenced by human activities, the researchers said.
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 three-part series Tainted Harvest
looks at the soil pollution crisis in China, the threat it poses to the food supply, and the complexity of any cleanup. Read the series.
is now available for mobile devices at e360.yale.edu/mobile
The Warriors of Qiugang
, a Yale Environment 360
video, chronicles a Chinese village’s fight against a polluting chemical plant. It was nominated for a 2011 Academy Award for Best Documentary Short.
Watch the video.
Top Image: aerial view of Iceland
. © Google & TerraMetrics.
, winner of the Yale Environment 360 Video Contest, documents the work of African researchers monitoring wildlife in Uganda's remote Bwindi Impenetrable National Park. Watch the video.