• July 2020: Record Hot for Northern Hemisphere, 2nd Hottest for Planet

    July 2020 has tied for second-hottest July on record for the globe, according to NOAA’s National Centers for Environmental Information. What is more, the Northern Hemisphere saw its hottest July ever  — surpassing its previous record high set in 2019.

  • Demographics Data Helps Predict N.Y. Flood Insurance Claims

    In flood-prone areas of the Hudson River valley in New York state, census areas with more white and affluent home owners tend to file a higher percentage of flood insurance claims than lower-income, minority residents, raising the issue of developing more nuanced, need-based federal flood insurance subsidies in these floodplains, according to a new study.

  • A Warming California Will See Reservoirs Overwhelmed by Floods

    By the 2070s, global warming will increase extreme rainfall and reduce snowfall in the Sierra Nevada, delivering a double whammy that will likely overwhelm California’s reservoirs and heighten the risk of flooding in much of the state.

  • Facing Climate Threats, Landmarks May Have to Adapt and “Transform”

    How much effort should be spent trying to keep Venice looking like Venice – even as it faces rising sea levels that threaten the city with more frequent extreme flooding? As climate change threatens cultural sites, preservationists and researchers are asking whether these iconic locations should be meticulously restored or should be allowed to adapt and “transform.”

  • Bay Area Coastal Flooding Triggers Region-Wide Commute Disruptions

    Researchers have modeled how coastal flooding will impact commutes in the Bay Area over the next twenty years. Regions with sparse road networks will have some of the worst commute delays, regardless of their distances from the coast.

  • “Worst case” CO2 Emissions Scenario Best Match for Assessing Climate Risk: Report

    Four scenarios known as Representative Concentration Pathways (RCPs) were developed in 2005 to describe the potential scope and impact of global warming. The worst-case scenario was RCP 8.5, referring to the concentration of carbon that delivers global warming at an average of 8.5 watts per square meter across the planet (the best-case scenario was RCP 2.6). Scientists now argue that the RCP 8.5 CO2 emissions pathway — the worst-case scenario — is the most appropriate for conducting assessments of climate change impacts by 2050.

  • More Frequent Coastal Flooding Threatens 20 percent of global GDP

    Coastal flooding across the world is set to rise by around 50 percent due to climate change in the next 80 years, endangering millions more people and trillions of dollars more of coastal infrastructure. The land area exposed to an extreme flood event will increase by more than 250,000 square kilometers globally, an increase of 48 percent or over 800,000 square kilometers. This would mean about 77 million more people will be at risk of experiencing flooding, a rise of 52 percent to 225 million. The economic risk in terms of the infrastructure exposed will rise by up to $14.2 trillion, which represents 20 percent of global GDP.

  • Texas to Face Driest Conditions of Last 1,000 Years

    Texas’ future climate will have drier summers and decreasing water supplies for much of the remainder of the twenty-first century — likely resulting in the driest conditions in the last 1,000 years, according to research led by Texas A&M University scientists.

  • During Droughts: Where Is the Water?

    In low precipitation periods – where and how is the limited available water distributed and what possibilities are there for improving retention in the soil and the landscape?

  • Roadmap for Studying Link between Climate and Armed Conflict

    Climate change—from rising temperatures and more severe heavy rain, to drought—is increasing risks for economies, human security, and conflict globally. Scientists are offering ways better to assess the climate-conflict link to help societies manage the complex risks of increased violence from a changing climate.

  • Future Texas Hurricanes: Fast Like Ike or Slow Like Harvey?

    Climate change will intensify winds that steer hurricanes north over Texas, increasing the odds for fast-moving storms like 2008’s Ike compared with slow-movers like 2017’s Harvey, according to new research.

  • Increases in Greenhouse Gas, Particulate Pollution Emissions Drive Drying around the Globe

    Researchers have identified two signatures or “fingerprints” that explain why arid conditions are spreading worldwide, and why the Western United States has tended toward drought conditions since the 1980s while the African Sahel has recovered from its prolonged drought.

  • Heatwave Trends Accelerate Worldwide

    The first comprehensive worldwide assessment of heatwaves down to regional levels has revealed that in nearly every part of the world heatwaves have been increasing in frequency and duration since the 1950s. New research has also produced a new metric, cumulative heat, which reveals exactly how much heat is packed into individual heatwaves and heatwave seasons. As expected, that number is also on the rise.

  • Chances of 40°C Days in the U.K. Increasing

    The highest temperature ever recorded in the U.K. is 38.7°C (101.6 F) set in Cambridge in July 2019. This prompts the question of whether exceeding 40°C is now within the possibilities of the U.K. climate. A new study by the Met Office says that on current global warming trends, Britain could see 40°C (104 F) days every 3-4 years on average within a few decades.

  • Global Glacier Melt Raises Sea Levels, Depletes Once-Reliable Water Source

    The melting of glaciers and ice caps in places as diverse as the Himalayas and Andes mountain ranges, the Svalbard island group and the Canadian Arctic Archipelago has the dual effect of raising global sea levels and depleting freshwater resources that serve millions of people around the world.