National Public Radio: A study in the journal Nature could help explain why the Earth's average temperature hasn't increased during the past 15 years - despite a long-term trend of global warming.
The Earth's average temperature has risen by more than 1 degree Fahrenheit since the beginning of the Industrial Revolution. But the temperature rise has not been moving in lock step with the rise of carbon dioxide in the atmosphere. Carbon dioxide - mainly from burning fossil fuels - traps heat in the air.
Now scientists...