Despite efforts to reduce emissions of a HFC-23, a potent greenhouse gas, research shows that concentrations of the compound have increased in recent years.
From the African savanna to North America’s boreal forests, NOAA’s CarbonTracker tool provides insight into what natural and human processes affect the uptake, release, and transport of carbon dioxide in Earth’s lower atmosphere.
Carbon dioxide is everywhere: in the air, rising from cracks in the ocean floor, and in your soda can. Now it's showing up in the news! Find out why carbon dioxide is such a hot topic, and why it's going to be around for a long, long time.
The Sun's average brightness varies over time, and the changes can affect global surface temperature. But long-term changes over the period of human-caused global warming are minimal.
In the past 60 years, carbon dioxide in the atmosphere has increased 100 times faster than it did during the end of the last ice age.
Susan Solomon Wins 2009 Volvo Environment Prize
January 15, 2009