To help policymakers more confidently prepare for the effects of climate change, a group of preeminent climate scientists evaluated the scientific work and expert judgments behind the most recent projections from the Intergovernmental Panel on Climate Change regarding the potential ecological, social, economic and meteorological repercussions of climate change.

Princeton University has a substantial impact on the New Jersey economy, generating an annual total of $1.58 billion in economic output as an employer, research and innovation leader, sponsor of construction projects, purchaser of goods and services, and financial and civic contributor to local communities. That total supports an estimated 13,450 jobs with $970.7 million in earnings.

A Princeton University-led study has found that trees worldwide develop thicker bark when they live in fire-prone areas. The findings suggest that bark thickness could help predict which forests and savannas will survive a warmer climate in which wildfires are expected to increase in frequency.

Researchers at Princeton and Rutgers universities have found that the hepatitis E virus — an emerging liver virus historically found in developing countries but now on the rise in Europe — uses a technique to spread infection that scientists could in fact exploit to treat the disease.

Scientists from Princeton University and NOAA have produced the first global analysis of how climate change may affect the frequency of mild-weather days, which are defined as having temperatures between 64 and 86 degrees Fahrenheit (18 and 30 degrees Celsius) with low rain and humidity. The current global average of 74 mild days a year will drop by 10 days by 2100, with mid-latitude areas such as the United States experiencing more mild days and tropical areas seeing more hot and humid days.

Scientists have long debated how large-scale plant patterns such as the famous "fairy circles" of Namibia form and persist. Now, a new Princeton University-led study suggests that instead of a single overarching cause, large-scale vegetation patterns in arid ecosystems could occasionally stem from millions of local interactions among neighboring plants and animals. The work could explain many patterns throughout the world.

Princeton President Christopher L. Eisgruber issued a statement to the University community Sunday, Jan. 29, 2017, on the federal immigration executive order.

Princeton President Christopher L. Eisgruber and 47 other American college and university presidents today sent a letter to President Trump urging him to "rectify or rescind the recent executive order closing our country's borders to immigrants and others from seven majority-Muslim countries and to refugees from throughout the world." "If left in place," the letters says, "the order threatens both American higher education and the defining principles of our country."

Princeton University researchers have drastically shrunk the equipment for producing terahertz — important electromagnetic pulses lasting one millionth of a millionth of a second — to the size of a microchip. The simpler, cheaper generation of terahertz has potential for advances in medical imaging, communications and drug development.

Princeton University and 16 other universities filed a friend-of-the-court brief Monday supporting a legal challenge to the Trump administration's Jan. 27 executive order on immigration.

A Princeton University-based study could prove significant in answering among the most enduring questions for ecologists: Why do species live where they do, and what are the factors that keep them there? The ranges of animals in the world's temperate mountain areas — often presumed to be determined by competition — may actually be determined more by temperature and habitat, the researchers report. The findings indicate that species living in temperate mountain habitats — particularly in the northern latitudes — could face even greater repercussions from climate change than previously thought.

Princeton University researchers have found that the roundworms Caenorhabditis elegans have a sure-fire method of ensuring a steady supply of a bacteria they eat — they grow their own. The worms carry the bacteria Escherichia coli along with them, and drop bacteria along the way to create thriving new bacterial colonies that the worms later return to "harvest" and eat.

Princeton University Professor of Mathematics John Mather, remembered as a "great mathematician" with a reserved and pleasant demeanor, died Jan. 28 of complications from prostate cancer at his home in Princeton. He was 74.

An influx of pollution from Asia in the western United States and more frequent heat waves in the eastern U.S. are responsible for the persistence of smog in these regions over the past quarter century despite laws curtailing the emission of smog-forming chemicals from automobile tailpipes and factories.

Theories developed at Princeton University led to the creation of time crystals reported in the journal Nature March 9 by two groups of researchers based at Harvard University and the University of Maryland. Time crystals feature atoms and molecules arranged across space and time and are opening up entirely new ways to think about the nature of matter. They also eventually may help protect information in futuristic devices known as quantum computers.

In many species, mating comes at the steep price of an organism's life, an evolutionary process intended to regulate reproductive competition. But Princeton University researchers report that males of the roundworm species Caenorhabditis elegans have doubled down with two methods of checking out after reproducing — a lethal gene activated after mating, and pheromones released by other males. The findings provide insight into how aging, longevity and population are naturally regulated for different species and sexes.

John Pardon, a Princeton University professor of mathematics, has received a National Science Foundation Alan T. Waterman Award, which is the nation's highest honor for scientists and engineers younger than 35. The prize carries a five-year, $1 million grant. Pardon was recognized for "revolutionary, groundbreaking results in geometry and topology" that "have extended the power of tools of geometric analysis to solve deep problems in real and complex geometry, topology and dynamical systems."

Princeton University has reaffirmed a statement it made in 2015 expressing the hope that the then-upcoming U.N. Climate Negotiations in Paris would “lead to significant progress in promoting clean energy and other positive actions to address the environmental impacts of climate change.”

BOSTON - The U.S. Environmental Protection Agency (EPA) is proposing targeted modifications to the 2016 Small Municipal Separate Storm Sewer System (MS4) general permit for Massachusetts communities.

BOSTON - The U.S. Environmental Protection Agency (EPA) is proposing targeted modifications to the 2017 Small Municipal Separate Storm Sewer System (MS4) general permit for New Hampshire communities.

WASHINGTON (April 27, 2020) — Today, the U.S.

WASHINGTON (April 28, 2020) — Today, the U.S.

PHOENIX – Today, the U.S.

PHILADELPHIA (April 29, 2020) — The U.S. Environmental Protection Agency announced today that Lea Wang, a sophomore at Council Rock High School in Holland, Pennsylvania, is the 2019 winner of a President’s Environmental Youth Award (PEYA) for EPA’s Mid-Atlantic Region.

PHILADELPHIA (April 29, 2020) – The U.S. Environmental Protection Agency announced today that science teacher Ann Strozyk from the Howard County Public School District in Maryland is a 2019 winner of a Presidential Innovation Award for Environmental Educators (PIAEE).

Environmental News FOR IMMEDIATE RELEASE

Environmental News FOR IMMEDIATE RELEASE

BOSTON – The US Environmental Protection Agency (EPA) is awarding seven local New England organizations with recognition for their work keeping wasted food out of landfills and incinerators and putting it to better use.

For Immediate Release No. 20-OPA-042

PAGO PAGO, American Samoa - Today, the U.S. Environmental Protection Agency (EPA) announced that American Samoa was selected to receive a $300,000 grant to assess and clean up contaminated properties under the agency’s Brownfields Program.

Environmental News  FOR IMMEDIATE RELEASE

DENVER (February 19, 2020) — Today, the U.S.

WASHINGTON (February 19, 2020) — Today, the U.S.

CHARLOTTE, N.C. (February 20, 2020) - Today, the U.S. Environmental Protection Agency (EPA) awarded the University of North Carolina at Charlotte with a $24,867 People, Prosperity and the Planet (P3) grant.

CHARLOTTE, N.C. (February 20, 2020) - Today, the U.S. Environmental Protection Agency (EPA) awarded the North Carolina State University in Raleigh with a $25,000 People, Prosperity and the Planet (P3) grant.

Environmental NewsFOR IMMEDIATE RELEASE

WASHINGTON (April 28, 2020) —  Today, the U.S. Environmental Protection Agency’s (EPA) Science Advisory Board (SAB) transmitted its official advice and comments to EPA Administrator Wheeler on the Strengthening Transparency in Regulatory Science proposed rule.

U.S. VIRGIN ISLANDS – Recently, U.S. Environmental Protection Agency (EPA) Regional Administrator Pete Lopez met with Gov. Albert Bryan Jr. of the U.S.

SAN JUAN, PUERTO RICO – Recently, U.S.

YELLOW SPRINGS, Ohio (October 17, 2019) – The U.S. Environmental Protection Agency (EPA) will present the proposed cleanup options for the Vernay Laboratories Inc. site at a public meeting on Thursday, Oct. 24 in Yellow Springs. The information session will run from 5-7 p.m.

WASHINGTON (April 22, 2019) – Today, U.S.

Metz, France (May 7, 2019) - Yesterday, U.S. Environmental Protection Agency (EPA) Administrator Andrew Wheeler concluded his visit to Metz, France where he attended the annual G7 Environmental Ministers Meeting.

KARUIZAWA, JAPAN – Yesterday, U.S. Environmental Protection Agency (EPA) Administrator Andrew Wheeler concluded his visit to Karuizawa, Japan where he attended the inaugural G20 Energy and Environmental Ministers Meeting.

(MEXICO CITY) – Today, U.S. Environmental Protection Agency Administrator Andrew Wheeler wrapped up trilateral meetings with Canada and Mexico as part of the 25th Anniversary of the Commission for Environmental Cooperation (CEC) Council meetings in Mexico City.

NOGALES, AZ – Today, the U.S.

Environmental News FOR IMMEDIATE RELEASE

WASHINGTON – Today, the U.S. Environmental Protection Agency (EPA) announced the 2019 winners of the national WasteWise awards. EPA is recognizing the outstanding accomplishments of 11 WasteWise partner organizations.

Environmental News FOR IMMEDIATE RELEASE

Environmental News  FOR IMMEDIATE RELEASE