Last year, atmospheric methane levels reached a grim new milestone, surpassing 1,900 parts per billion, the highest level in almost 40 years of record-keeping, according to new data from the National Oceanic and Atmospheric Administration.

Agriculture accounts for around 25 percent of all greenhouse gas emissions worldwide. 

In a landmark study of airborne microorganisms from ground level up to 3,500 metres, scientists from the Singapore Centre for Environmental Life Sciences Engineering (SCELSE) at Nanyang Technological University, Singapore (NTU Singapore) have found that bacteria and fungi populate the planet's lower atmosphere in very specific ways and if changed, may negatively impact human health and food supply.

Because infected people begin excreting virus days before developing symptoms, wastewater monitoring can provide an early warning of infection in the community.

Could satellites be able to help track and map the marine plastic waste befouling our oceans?

Even the finest particles of pollution influence the process of cloud formation and the rainfall regime. A study conducted in Manaus, the capital of Amazonas state in Brazil’s North region, shows that oxidation leads small aerosols expelled by factories and car exhausts, for example, to grow very rapidly, reaching up to 400 times their original size, and that this affects raindrop formation.

Heat and drought exacerbated fire season in 2020, but cattle grazing and other human activities also primed the region to burn.

Having a solid estimate of the amount of carbon that forests can pull from the atmosphere is essential for global accounting of climate change — leaders are counting on forests to pull a good chunk of human-produced carbon back to earth.

Microplastics can be found everywhere — from the air to the ocean — but there's still much to learn about the sources and how they move through the landscape.

Winters are warming faster than summers in North America, impacting everything from ecosystems to the economy.