• Global Food Production Poses an Increasing Threat to the Climate

    The significant use of nitrogen fertilizers in the production of food worldwide is increasing concentrations of nitrous oxide in the atmosphere—a greenhouse gas 300 times more potent than carbon dioxide—which remains in the atmosphere longer than a human lifetime.

  • Two's a crowd: Nuclear and Renewables Don't Mix

    If countries want to lower emissions as substantially, rapidly and cost-effectively as possible, they should prioritize support for renewables, rather than nuclear power. That’s the finding of new analysis of 123 countries over 25 years.

  • As Atmospheric Carbon Rises, So Do Rivers, Exacerbating Flooding

    When it comes to climate change, relationships are everything. That’s a key takeaway of a new study that examines the interaction between plants, atmospheric carbon dioxide and rising water levels in the Mississippi River.

  • Energy security The Promise of California Offshore Wind Energy

    As California aims to provide 60 percent of its energy from renewable sources by 2030 and 100 percent by 2045, a Cal Poly study provides some good news: Offshore winds along the Central Coast increase at the same time that people start using more energy — in the evening.

  • How Many People Will Migrate Due to Rising Sea Levels? Our Best Guesses Aren’t Good Enough

    The idea that rising seas will force millions to move, unleashing a refugee crisis like no other, has now become commonplace. It’s a narrative that the media are fond of, but that does not mean it is based on evidence. The potential scale of sea level rise is becoming clearer, but this does not necessarily translate into population movements. Everything we have learned so far suggests that decisions to migrate are far more complex than a simple flight response.

  • Climate Change Triggers Migration

    Environmental hazards affect populations worldwide and can drive migration under specific conditions, especially in middle-income and agricultural countries. According to a new study, changes in temperature levels, increased rainfall variability, and rapid-onset disasters such as tropical storms play an important role in this regard.

  • Wildfire in Northern California's Coastal Ranges on the Rise Since 1984

    High-severity wildfires in northern coastal California have been increasing by about 10 percent per decade since 1984, according to a new study. From Berryessa to Klamath Mountains, High-Severity Burns Quadrupled During Warm Drought.

  • Does Experiencing Wildfires Create Political Consensus on Resilience Measures?

    As of last weekend [12-13 September], 97 large fires have burned 4.7 million acres across the American West, causing widespread evacuations in California, Oregon, Washington, Colorado, Idaho and Utah.  The smoke from these summer wildfires has spread very widely over the region, curtailing outdoor activity and sending many to the hospitals with respiratory ailments, heat attacks and strokes.  Will this move us any closer to achieving a consensus on the topic of dealing with climate change?

  • What Is a Tipping Point, and Why Should I Care?

    Big or small, certain shifts — spurred by disruptions — indicate that in some way a point between the way things were in the past and the way they’ll be in the future has been met and passed. Our ability to understand and act thoughtfully around this single concept could determine the fate of life on Earth.

  • Up to 15 Inches of Sea-Level Rise from Ice Sheets by 2100

    A collaborative effort of more than three dozen research institutions from around the world has helped to create the most accurate prediction of how melting ice in Antarctica and Greenland will contribute to global sea-level rise.   

  • Climate Change Making Western Wildfires in U.S. Worse

    Wildfires have burned a record-breaking 1.25 million hectares in California as of Saturday. Washington state is enduring its second-largest area burned. A half-million people are under a fire evacuation warning or order in Oregon, one-tenth of the state’s population. The devastation is not unexpected. Climate experts have been sounding the alarm for a long time. Wildfires need dry plants to burn, and climate change is helping increase the supply.

  • Global Fire Outlook Not Good News, but Mitigation Is Possible

    Wildfire is a natural process necessary to many ecosystems. But wildfires are getting worse and more damaging, and it is our fault, according to new research. The global economic and environmental damage caused by wildfire will only increase because of human-caused climate change, but we are also able to save ourselves, the researchers said.

  • Climate Engineering: Modelling Projections Oversimplify Risks

    Climate change is gaining prominence as a political and public priority. But many ambitious climate action plans foresee the use of climate engineering technologies whose risks are insufficiently understood. Researchers warn that over-optimistic expectations of climate engineering may reinforce the inertia with which industry and politics have been addressing decarbonization. In order to forestall this trend, they recommend more stakeholder input and clearer communication of the premises and limitations of model results.

  • Climate Change Will Ultimately Cost Humanity $100,000 Per Ton of Carbon, Scientists Estimate

    Economists frequently try to estimate the societal cost of releasing carbon dioxide into the atmosphere, but few of their projections go beyond the year 2100—far short of the millennia it takes for the climate changes from burning carbon to ultimately subside. Two geoscientists and a philosopher from the University of Chicago wanted to take a much longer view on the matter. Their new estimate for an “ultimate cost of carbon” to humanity, published in the journal Climactic Change, came out closer to $100,000 per ton of carbon—a thousand times higher than the $100 or less routinely calculated for the cost to our generation.

  • Devastating Hurricanes Could Be Up to Five Times More Likely in the Caribbean

    Global warming is dramatically increasing the risk of extreme hurricanes in the Caribbean, but meeting more ambitious climate change goals could up to halve the likelihood of such disasters in the region, according to new research.