• Food SecurityNuclear War's Smoke Would Cause Climate Change, Threatening Global Food Supplies

    Nuclear war would cause many immediate fatalities, but smoke and soot from the resulting fires would also cause climate change lasting up to fifteen years, threatening worldwide food production and human health, according to a new study.

  • DroughtsCurrent Southwest Drought Is a Preview of Things to Come

    Scientists found that the record-low precipitation that kicked off the unprecedented drought parching the U.S. Southwest since 2020 could have been a fluke—just the rare bad luck of natural variability. But the drought would not have reached its current punishing intensity without the extremely high temperatures brought by human-caused global warming.

  • DroughtsSmall Increases in Greenhouse Gases Will Lead to Decades-Long “Megadroughts” in U.S. Southwest

    Recent NOAA-funded research found that even small additional increases in greenhouse gas emissions will make decades-long “megadroughts” – similar to the drought which has descended on the U.S. southwest nearly twenty years ago — more common.

  • Food securityNew Ways to Assess Climate Change Impacts on Agriculture

    Scientists agree climate change has a profound impact on U.S. agricultural production, but estimates vary, making it hard to develop mitigation strategies. Two agricultural economists take a closer look at how choice of statistical methodology influences climate study results. They also propose a more accurate and place-specific approach to data analysis.

  • Food securityGlobal Warming Increased U.S. Crop Insurance Losses by $27 Billion in 27 Years

    Higher temperatures attributed to climate change caused payouts from the nation’s biggest farm support program to increase by $27 billion between 1991 and 2017, according to new estimates from Stanford researchers. Costs are likely to rise even further with the growing intensity and frequency of heat waves and other severe weather events.

  • China watchLawmakers Looking to Curb Chinese Ownership of U.S. Farmland

    By Yinan Wang

    The Chinese threat to American food security, so far, would seem minimal: As of December 2019, Chinese agricultural real estate holdings in America totaled about 78,000 hectares, which is about 0.02 percent of America’s roughly 3.6 million square kilometers of total farmland. Still, U.S. lawmakers are seeking to restrict Chinese purchases of American farmland amid fears that such purchases could ultimately pose a threat to the U.S. food supply chain.

  • Food securityBuilding Resilience against Agroterrorism, Agro-crime Threats

    Agroterrorism and agro-crime constitute a considerable threat to the economy and public health. To effectively deal with agroterror or agro-crime using pathogens of animal origin, it is crucial that veterinary and law enforcement agencies are equipped to work together to jointly plan, prepare, and respond to animal disease outbreaks.

  • Supply chain resilienceCreating More Resilient Supply Chains Through Nature-Inspired Design

    Supply chains work a lot like food webs in natural ecosystems, in which biodiversity allows for adaptation during disruptions. The analogy turned out to be relevant particularly in looking at “black swan” events, which are unpredictable and hard to protect against—and for which adaptation, not prevention, is the main defense.

  • Climate change challengesDrought and Record Heat in the West: The Climate Change Connection

    By Megan Lowry

    As intense drought and record heat make their way across the Western U.S., the deep and devastating impacts of this extreme weather are clear — electric utilities are asking consumers to ration power and water, farmers are scrambling to sell or save their produce, and officials are making plans to keep their communities safe and cool. All before true summer weather arrives. Research shows that these extreme events are expected to continue as our climate changes.

  • Food securitySolar Geoengineering May Alleviate Impacts of Global Warming on Crops

    Solar geoengineering — putting aerosols into the atmosphere to reflect sunlight and reduce global warming — is not a fix-all for climate change but it could be one of several tools to manage climate risks. A growing body of research has explored the ability of solar geoengineering to reduce physical climate changes. But much less is known about how solar geoengineering could affect the ecosystem and, particularly, agriculture.

  • Water securityNew Tool Could Guide Floodwater Management and Combat Ongoing Drought

    Using a new computer framework, scientists are able to project future floodwaters under a changing climate. The approach could help California water managers plan for and redirect floodwaters toward groundwater aquifers, alleviating both flood and drought risks.

  • Water securityInterstate Water Wars Are Heating Up Along with the Climate

    By Robert Glennon

    Interstate water disputes are as American as apple pie. States often think a neighboring state is using more than its fair share from a river, lake or aquifer that crosses borders. Climate stresses are raising the stakes.

  • Food securityClimate Change Has Cost 7 years of Ag Productivity Growth

    By Blaine Friedlander

    Despite important agricultural advancements to feed the world in the last 60 years, a Cornell-led study shows that global farming productivity is 21 percent lower than it could have been without climate change. This is the equivalent of losing about seven years of farm productivity increases since the 1960s.

  • Food securityAdaptation, Not Irrigation Recommended for Midwest Corn Farmers

    A warming climate may not increase water demand for Midwest crops that may instead be adapted through soil management to changing air temperatures and moisture, say researchers helping farmers manage the challenge.

  • Food securityFood Export Restrictions Could Skyrocket Global Food Crop Prices

    Recent events such as the Covid-19 pandemic, locust infestations, drought and labor shortages have disrupted food supply chains, endangering food security in the process. A recent study shows that trade restrictions and stockpiling of supplies by a few key countries could create global food price spikes and severe local food shortages during times of threat.