Greenhouse Gases Rise to Record Levels in Atmosphere, WMO Says

Greenhouse Gases Rise to Record Levels in Atmosphere, WMO Says

Qilai Shen/Panos

Carbon dioxide, responsible for about 80 percent of the global warming effect of greenhouse gases, gained 0.51 percent to 390.9 parts per million molecules of air, the UN’s World Meteorological Organization said today in an e-mailed bulletin.