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Leaf Forecast: Outlook Good for Colorful FallHurricane Irene may add kick to fall's colorful leaves.
planet-earth -
How tall can trees grow?The interplay between opposing forces that act on trees define their theoretical maximum height.
plants -
Twisted Tropics: Growth of Vines Imperils EcosystemEvidence is mounting that vines are becoming more abundant in tropical forests of the Americas, raising the possibility of major ecosystem change.
planet-earth -
World's Plants Growing Less Thanks to Warming, DroughtDecline is reverse of earlier boost from warmer temperatures, longer growing season.
plants -
Surprise! Even Plants Can Contribute to Global WarmingEven though plants absorb some greenhouse gas, rising CO2 levels make leaves contribute to global warming.
climate-change -
Scientists: Northern Forests Need Saving, TooForests in the north region are facing increasing threats.
climate-change -
Ancient Civilization Cut Path to DemiseThe ancient South American Nasca civilization may have caused its own demise by clear-cutting huge swaths of forest, a new study found.
planet-earth -
Electricity Harvested From TreesNew devices can be powered by electricity from trees.
renewable-energy -
Humans Walked After Tree-Climbing Era, Study IndicatesMany scientists think early humans walked on their knuckles before evolving the ability to walk upright, but a new study suggests they may have bypassed that step.
primates
