Environment
CO2 Levels Reach Record-Breaking Milestone in Northern Hemisphere
For the first time, carbon dioxide (CO2) levels have reached a record-breaking milestone, its monthly concentrations topping 400 parts per million (ppm) in April throughout the Northern Hemisphere, the World Meteorological Organization (WMO) reports.
Latest Research Articles
Light-Colored Butterflies Fare Better in Warming Climate
Babbling Brooks Bubble up Methane Gas
Environmentalists Battle Study of New Jersey Ocean Bed
3 Still Missing after Colorado Mudslide
Emerald Ash Beetle Boring into and Devouring Midwest Trees
Google Doodle Celebrates Environmentalist Rachel Carson's 107th Birthday
"Dread" of Disasters Could Be an Imporant Political Tool
"Rapid Evolution" Keeps Invasive Plants Spreading
Lawsuit Warns Politicians That Climate Change Can Cost Them
Human Impact on Amazon Rainforest Grossly Underestimated
Warming Tropical Waters May be Behind Icy US Winter
Specimen Collection Does Not Lead to Species Extinction, Scientists Say