Add Yahoo as a preferred source to see more of our stories on Google. [Getty Images] Human activities are causing world temperatures to rise, posing serious threats to people and nature. Things are ...

When it comes to distinguishing between weather and climate, weather generally covers short and specific timeframes and locations, while climate focuses on trends and statistical ups and downs over ...

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 ...

Human activities are causing world temperatures to rise, posing serious threats to people and nature. Things are likely to worsen in the coming decades, but scientists argue urgent action can still ...