5,442 results
5,442 results for: Forests
- Climate
The hidden costs of better fuels
Whether crop-based biofuels will reduce greenhouse gas emissions depends on how, and where, they're grown.
- Life
Everyday tree deaths have doubled
In past 50 years, apparently healthy forests have started losing trees faster, possibly because of climate change.
- Climate
Newspapers issue strong warning on climate
SN senior editor Janet Raloff blogs from Hamburg, Germany, before going to Copenhagen to attend the climate talks.
- Plants
Losing life’s variety
2010 is the deadline set for reversing declines in biodiversity, but little has been accomplished.
- Climate
Hot carbon storage
New field studies show Africa’s tropical forests have stored carbon in recent decades.
- Anthropology
Pygmies’ short stature linked to high death rates
Island-dwelling pygmies provide contested evidence that body size shrinks as mortality rates climb.
- Climate
Warming has already boosted insect breeding
Museum records, publications suggest extra generations at same time as temperature increases
- Life
2009 Science News of the Year: Life
Breeding records for sheep on Hirta offer an unusual opportunity to study inheritance. Image Credit: Arpat Ozgul Gentler winters shrink sheepWarming has trumped the benefits of fat to shrink sheep on the remote North Atlantic island of Hirta, a new analytical approach has revealed (SN: 8/1/09, p. 12). Weights for wild female Soay sheep dropped […]
- Plants
Forest invades tundra
The Arctic tundra is under assault from trees, with serious implications for global climate change.
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Aping the Stone Age
Chimp chasers join artifact extractors to probe the roots of stone tools.
- Anthropology
African pygmies may be older than thought
A new DNA analysis indicates that pygmy hunter-gatherers and farming groups in Africa diverged from a common ancestral population around 60,000 years ago.
- Ecosystems
Flowering plants welcome other life
When angiosperms diversified 100 million years ago, they opened new niches for ants, plants and frogs.
