In the journal Nature, paleoclimate researchers reveal that about 12-5 million years ago climate was decoupled from atmospheric carbon dioxide concentrations. In the last five million years, changes in ocean circulation allowed Earth's climate to become more closely coupled to changes in carbon dioxide concentrations in the atmosphere.
The U.S. Environmental Protection Agency (EPA), the National Institute of Environmental Health Sciences (NIEHS) and the Department of Health and Human Services (HHS) Office of the Coordinator for Health Information Technology have announced a nationwide challenge called My Air, My Health (MAMH).
Twenty years after the Earth Summit in Rio de Janeiro, 17 prominent ecologists are calling for renewed international efforts to curb the loss of biological diversity, which is compromising nature's ability to provide goods and services essential for human well-being.
A group of scientists from around the world is warning that population growth, widespread destruction of natural ecosystems, and climate change may be driving Earth toward an irreversible change in the biosphere, a planet-wide tipping point that would have destructive consequences absent adequate preparation and mitigation.
The dramatic meltoff of Arctic sea ice due to climate change is hitting closer to home than millions of Americans might think.
Boulder Ionics, a new startup, has apparently found a way to get more bang for the buck with lithium ion batteries by creating a liquid electrolyte out of ionic salts that performs better than anything else currently being used.
The U.S. Environmental Protection Agency has finished cleaning up contaminated soil in a south Minneapolis neighborhood a full year ahead of schedlue.
The Boeing Company has steadily reduced its environmental footprint while rapidly expanding its business and significantly increasing monthly airplane production rates, the company reported in its fifth annual Environment Report.
The term RICE MACT refers to the National Emission Standards for Stationary Reciprocating Internal Combustion Engines (RICE), codified at 40 CFR Part 63, Subpart ZZZZ. The RICE MACT rules apply to any piece of equipment driven by a stationary RICE located at a major source or area source of hazardous air pollutants (HAP).
The U.S. Environmental Protection Agency is providing $1 million to Desarrollo Integral del Sur, Inc., an organization representing a coalition of Puerto Rico municipalities, for the assessment of abandoned and contaminated sites in Guanyilla, Penuelas and Ponce.
For decades, oceanographers have collected water samples from the surface of the ocean in order to record how much plastic debris currently litters the waters. But a new study asserts that surface collection alone is insufficient because high winds have a tremendous impact on the buoyancy of the plastic debris.
Since municipalities pay for trash disposal, usually by the ton, researchers say big savings could result from reducing volume of trash, along with the cost of hauling it and paying tipping fees for disposal, in addition to improving the environment.
In cities, the presence of algae, lichens, and mosses is not considered desirable and they are often removed from roofs and walls. It is, however, totally unfair to consider these cryptogamic covers, as the flat growths are referred to in scientific terms, just a nuisance.
Paving a highway across South America is providing lessons on the impact of road construction elsewhere.
The U.S. Environmental Protection Agency is providing a total of $970,000 to New York City and Ogdensburg, New York to clean up abandoned and contaminated sites.
On Friday, PBS NewsHour reporter Hari Sreenivasan will report on how rising sea levels in coastal Louisiana are threatening Native Americans' tribal lands.
U.S. Environmental Protection Agency Regional Administrator Jim Martin presented the Mayors of Salt Lake City, Salt Lake County and Ogden City with $1.3 million in grant awards to advance the assessment, cleanup and redevelopment of properties.
According to a new study, children exposed to high levels of the common air pollutant naphthalene are at increased risk for chromosomal aberrations (CAs), which have been previously associated with cancer. These include chromosomal translocations, a potentially more harmful and long-lasting subtype of CAs.
Researchers at the University of York headed a major international review aimed at enhancing efforts to better understand the impacts of chemicals used in pharmaceuticals or in personal care products, such as cosmetics, soaps, perfumes, deodorants and toothpastes (PPCPs), on the natural environment.
A college professor and a ecotoxicologist have teamed up to write a paper suggesting that a public discourse on birth control chemicals be held before public officials decide whether to dedicate funds to cleaning such drugs from wastewater, or not.