Severe weather threats move into lower Great Lakes, Tennessee Valley Wednesday

Get late-breaking weather information, and your local forecast, at http://www.weather.gov.

More severe weather expected from Great Lakes to Central Texas on Tuesday

Get late-breaking information from the NOAA National Weather Service Storm Prediction Center (http://www.spc.noaa.gov/).

Global April temperatures were 13th highest on record; Year-to-date is eighth warmest period on record; North American snow cover was third largest

According to NOAA scientists, April 2013 was also the 37th consecutive April and 338th consecutive month (more than 28 years) with a global temperature above the 20th-century average.

Scientists find ancient microbes in Antarctic lake

In one of the most remote lakes of Antarctica, nearly 65 feet (19.8 meters) beneath the icy surface, scientists have uncovered a community of bacteria.

Drygalski Ice Tongue, Antarctica

Take a peek at our latest Earth image of the week. If you like it, download it!

Ice sheet loss at both poles increasing, study finds

An international team of experts has produced the most comprehensive and accurate assessment to date of ice sheet losses in Greenland and Antarctica and their contributions to sea level rise.

Tropical upper atmosphere 'fingerprint' of global warming

The winds of the quasibiennial oscillation in the tropical upper atmosphere have greatly weakened at some altitudes over the last six decades, according to a new study. The finding is consistent with computer model projections of how the upper atmosphere responds to global warming induced by increased greenhouse gas concentrations.

Carbon capture: Making use of minerals

Ammonium salts could provide a viable way of removing carbon dioxide from the atmosphere via carbon mineralization, studies suggest.

Life scientists present new insights on climate change and species interactions

Life scientists provide important new details on how climate change will affect interactions between species in newly published research. This knowledge, they say, is critical to making accurate predictions and informing policymakers of how species are likely to be impacted by rising temperatures.