The Sahara Desert has expanded by about 10 percent since 1920, according to a new study conducted by University of Maryland researchers. This represents roughly an area the size of South Dakota being ...

44 degrees, or about half way between its extremes, and this angle is very slowly decreasing in a cycle that spans about 41,000 years. 5 degrees relative to its orbital plane around the sun, is the ...

For over five decades, scientists have been striving to predict Earth's future climate. The progress has been remarkable, yet the task is daunting. As global warming accelerates, our ability to ...