Sea ice cover in the Southern Hemisphere is extremely variable, from summer to winter and from millennium to millennium, according to a University of Maine-led study. Overall, sea ice has been on the rise for about 10,000 years, but with some exceptions to this trend.

A new study led by scientists at the University of Miami (UM) Rosenstiel School of Marine and Atmospheric Science tracked large sharks in Miami and The Bahamas to understand how these migratory animals respond to major storms, like hurricanes.

Lightning bolts break apart nitrogen and oxygen molecules in the atmosphere and create reactive chemicals that affect greenhouse gases.

It all started about four years ago, when SUVs and pickup trucks drove uninvited onto their lands, remembers Olimpia Palmar, a member of the Indigenous Wayúu peoples, who have historically occupied the La Guajira desert in northern Colombia and Venezuela.

A massive collaborative research project covered in the journal Nature this week offers projections to the year 2100 of future sea-level rise from all sources of land ice, offering the most complete projections created to date.

A team of Swiss and international climate scientists has shown that the risk of glacial lake outburst floods in the Himalayan region and the Tibetan plateau could triple in the coming decades.

The bulging, equator-belted midsection of Earth currently teems with a greater diversity of life than anywhere else — a biodiversity that generally wanes when moving from the tropics to the mid-latitudes and the mid-latitudes to the poles.

For millennia, humans in the high latitudes have been enthralled by auroras—the northern and southern lights. 

The air in the United States and Western Europe is much cleaner than even a decade ago. 

A study by the UPV/EHU’s CBET research group and the University of Bordeaux has shown that graphene oxide nanomaterials, alone and combined with polycyclic aromatic hydrocarbons, pose a potential source of toxicity to fish, but at concentrations that are above the currently expected environmental levels.