CLIMATE CHANGE

This is the first time in 4 million years that carbon dioxide levels at the South Pole have passed the symbolic threshold of 400 parts per million.

Nearly 400 scientists have signed a letter asking President Barack Obama to leave the Arctic Ocean out of a proposed oil and federal gas leasing program.

Respondents in nine of 10 European countries surveyed said they saw the militant group as the greatest danger, ahead of climate change and economic instability.

This year’s coral bleaching, the worst in the reef’s history, has adversely affected over 90 percent of the 1,400 mile structure, according to recent surveys.

The experiment could be the much-awaited breakthrough for scientists working to perfect carbon capture and sequestration techniques.

The 3-year-long campaign will help scientists ascertain how environmental forces affect coral reefs around the world, using state-of-the-art PRISM technology.

Last month, Arctic sea ice spread over an area of 4.63 million square miles — 537,000 square miles below the 1981-2010 average.

Scientists may be able to use Mars as a parallel to learn more about Earth and the possibility of sending people to the red planet.

Obama used the opportunity to talk about the importance of free speech and using art as self-expression during his trip to the country.

The United States’ largest reservoir, which serves as a source of water for over 20 million people, is only 37 percent full.

They will discuss economic growth, climate change, clean energy, and security and defense cooperation during the meeting on June 7.

The most rapidly thinning glacier in East Antarctica has become “fundamentally unstable,” a study reveals.

But U.S. insistence on renegotiation could unravel the 195-nation Paris Agreement compromise to curb greenhouse gas emissions.

By 2060, people living in low-lying coastal areas, mainly in the U.S., China and India, could be affected by an “irreversible and unavoidable” sea level rise, a new report warns.

The Earth saw record-high temperatures for a 12th consecutive month, data show.

The EPA released new rules Thursday aimed at reducing greenhouse gas emissions linked to fossil fuels.

A study reveals sea-level rise and coastal erosion have claimed five reef islands in the region, which is facing imminent inundation.

Burkina Faso is battling more frequent and long-lasting droughts, with the capital Ouagadougou suffering from severe water shortages in recent weeks.

Twenty-three NGOs called for urgent aid to drought-ravaged Somalia, where residents are struck by the devastating effects of the current El Niño.

President Obama’s new plan to expand offshore drilling is a reminder of why watchdogs worry when companies support research that drives U.S. policy.

Earth Day is a time to reflect on the beauty of Mother Nature and learn ways (and teach others) to keep her healthy.