Environment

  • Millions displaced as a result of climate-related disasters, building in hazard-prone areas

    In the last seven years, an estimated one person every second has been displaced by a disaster, with 19.3 million people forced to flee their homes in 2014 alone. In 2014, 17.5 million people were forced to flee their homes by disasters brought on by weather-related hazards such as floods and storms, and 1.7 million by geophysical hazards such as earthquakes. Climate change is expected to exacerbate the situation in the future, as severe weather hazards become more frequent and intense. Man-made factors — such as rapid economic development, urbanization, and population growth in hazard-prone areas – have also contributed to the the overall increase in disaster displacement.

  • IAEA uses nuclear detection techniques to help measure climate change effects

    The International Atomic Energy Agency (IAEA) is responsible for monitoring compliance with the Nuclear Non-proliferation Treaty (NPT) – but the detection technologies it uses to detect illicit nuclear activities are also helpful in tracking and quantifying the effects of climate change. Nuclear techniques offer substantial advantages over conventional techniques for measuring climate change impact. “Stable isotope analyzers let us monitor agricultural processes as they happen. They allow us to quantify carbon capture and emission patterns of farming practices, enabling us to find ways to improve them,” explained one expert.

  • Climate change a security risk second only to terrorism: Aussie defense report

    The Australian government’s energy White Paper made headlines for its reluctance to mention the term “climate change” — but a forthcoming defense White Paper does not share these reservations. A report on community consultations conducted by the authors of the defense White Paper highlights the consequences of climate change, extreme weather events, and environmental pressures as a significant security risk for Australia – second only to the risks posed by terrorism.

  • We could find aliens any day now: SETI scientists discuss extraterrestrial life hunting

    ET phone Earth! We could be on the verge of answering one of the essential questions of humanity that has captivated our minds for centuries. As we advance in technology the search for extraterrestrial life becomes more sophisticated and promising. But the real frosting on the cake would be finding any signs of an intelligent alien civilization. The Search for Extraterrestrial Intelligence (SETI) project is looking carefully for these signs, listening to the universe that may be full of potential ET signals. Key figures of alien life hunting discuss the ongoing search for extraterrestrial life.

  • NASA balances water budget with new estimates of liquid assets

    Many pressing questions about Earth’s climate revolve around water. With droughts and flooding an ongoing concern, people want to know how much water is on the move and where it is going. To help answer those questions, a new NASA study provides estimates for the global water cycle budget for the first decade of the twenty-first century, taking the pulse of the planet and setting a baseline for future comparisons.

  • Producing fuel from Canada oil sands emits 20 percent more CO2 than from U.S. crude

    In 2013, the oil industry was producing nearly two million barrels per day from Canadian oil sands. By 2030, that number is expected to rise to just over 4.8 million barrels per day. As the United States takes stock of its greenhouse gas emissions, scientists report that the current oil sands production of fuels from “well-to-wheels” releases about 20 percent more carbon dioxide into the atmosphere than making gasoline and diesel from conventional crudes.

  • view counter
  • If global warming is left unchecked, fish will have to find new habitats -- or perish

    The goods and services our oceans provide are valued at hundreds of billions of dollars per year. A new study assessed the impact of climate change on marine and coastal ecosystems, ocean chemistry, tourism, and human health. The study specifically analyzed how warming will impact fisheries and the global economic gains we receive from these fisheries. It found that Climate change is forcing fish out of their current habitats and into cooler waters and many more species will soon be affected if climate goals are not met. “From looking at the surface of the ocean, you can’t tell much is changing,” said one researcher. “The oceans are closely tied to human systems and we’re putting communities at high risk.”

  • U.S. exposed in Arctic as a result of climate change: Military experts

    Senior former military commanders and security advisors warn that global warming is jeopardizing U.S. national security. They said that political gridlock in Washington over climate change has left the U.S. military exposed to Russia’s superior fleets in the Arctic, flooding in U.S. naval bases, and a more unstable world. “We’re still having debates about whether [climate change] is happening, as opposed to what we should do about it,” said a former undersecretary of defense. “We need to guard against the failure of imagination when it comes to climate change. Something is going to happen in the future years, and we’re not going to be prepared.”

  • Major Midwest flood risk underestimated by as much as five feet: Study

    As floodwaters surge along major rivers in the Midwestern United States, a new study suggests federal agencies are underestimating historic 100-year flood levels on these rivers by as much as five feet, a miscalculation that has serious implications for future flood risks, flood insurance, and business development in an expanding floodplain. Moreover, high-water marks are inching higher as global warming makes megafloods more common.

  • Our mostly dry planetary neighbors once had lots of water -- what does that imply for us?

    Our two closest solar system neighbors, Venus and Mars, once had oceans — planet-encircling, globe-girdling, Earth-like oceans, but neither Venus nor Mars could hold onto their water for long enough to nurture advanced life forms until they could flourish. The lessons from Venus and Mars are clear and simple: water worlds are delicate and fragile. Water worlds that can survive the ravages of aging, whether natural or inflicted by their inhabitants — and can nurture and sustain life over the long term — are rare and precious. If we allow the temperature of our planet to rise a degree or two, we may survive it as a minor environmental catastrophe. But beyond a few degrees, if we allow a runaway greenhouse effect to kick up the temperature a few more notches, do we know the point at which global warming sends our atmosphere into a runaway death spiral, turning Earth into Venus? We know what the endgame looks like.

  • Eco-friendly oil spill solution developed

    Chemists have developed an eco-friendly biodegradable green “herding” agent that can be used to clean up light crude oil spills on water. Derived from the plant-based small molecule phytol abundant in the marine environment, the new substance would potentially replace chemical herders currently in use.

  • Sea-level rise threatens $40 billion of national park assets, historical and cultural infrastructure

    U.S. Secretary of the Interior Sally Jewell last week released a report revealing that national park infrastructure and historic and cultural resources totaling more than $40 billion are at high risk of damage from sea-level rise caused by climate change. The report was conducted by scientists from the National Park Service and Western Carolina University and is based on an examination of forty parks — about one-third of those considered threatened by sea-level rise — and the survey is on-going.

  • UNC-Chapel Hill launches Coastal Resilience Center of Excellence

    The University of North Carolina at Chapel Hill officially launched its new Coastal Resilience Center of Excellence (CRC), made possible through a Department of Homeland Security (DHS) Science and Technology Directorate, Office of University Programs five-year, $20 million grant. The CRC initiative led by UNC-Chapel Hill will include collaboration with more than a dozen partner universities to address the challenges facing communities across the United States which are vulnerable to coastal hazards.

  • California Republicans introduce bill to improve Western water reliability

    Republican members of the California congressional delegation yesterday introducing a bill to modernize water policies in California and throughout the Western United States. The bill has the support of the entire California Republican delegation, the chairman of the House Natural Resources Committee, and chairman of the Western Caucus. The bill’s authors say that H.R. 2898, the Western Water and American Food Security Act of 2015, aims to make more water available to families, farmers, and communities in California and bordering Western states. The bill takes aim at what the authors describe as the “dedication of vast quantities of water to protect certain species of fish listed under the Endangered Species Act (ESA) [which] is a significant obstacle hindering water delivery in Central and Southern California.” H.R. 2898 will require federal agencies to use current and reliable data when making regulatory decisions, which in turn will provide more water for communities in need.

  • Precision agriculture: Sensors and drones as farmers’ best friends

    The precision agriculture sector is expected to grow at a high rate over the coming years. This new way of farming is already a reality in northwest Italy, where technologies are being used to keep plants in a good state of health but also to avert the loss of quality yield. Sensors and drones can be among the farmers’ best friends, helping them to use less fertilizers and water, and to control the general condition of their crops.