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Earth's greenhouse gases continue increase

Major greenhouse gases in the air are accumulating faster than in the past, despite efforts to curtail their growth. Carbon dioxide concentration in the air increased by 2.4 parts per million last year, the National Oceanic and Atmospheric Administration reported Wednesday, and methane concentrations also rose rapidly. Concern has grown in recent years about these gases, with most atmospheric scientists concerned that the increasing accumulation is causing the earth's temperature to rise, potentially disrupting climate and changing patterns of rainfall, drought and other storms.

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