USDA is observing World Health Day today.
This post is part of the Science Tuesday feature series on the USDA blog. Check back each week as we showcase stories and news from USDA’s rich science and research portfolio.
April 7 is World Health Day and food safety is the primary focus—and with good reason. The Centers for Disease Control and Prevention (CDC) estimate that, in the United States alone, every year there are 48 million foodborne illnesses and 3,000 deaths from unsafe food.
Most of these illnesses are the result of bacteria, such as Salmonella, that finds its way into various types of food. About half of all microbial foodborne illnesses are associated with animal foods, and about half from produce. CDC reports that most illnesses come from leafy greens, which could be contaminated on the farm, during processing, at retail or in the home. Chemicals, such as mercury in fish or mycotoxins from molds are also a concern. Read more »
Screenshot of the climate change effects education module explaining changes in wildlife phenology observed and expected with climate change. This section has an interaction that explores observed phenological changes for different regions.
The Climate Change Resource Center (CCRC) has recently released a new education resource on climate change effects on forests and grasslands. The CCRC is an online, nationally-relevant resource that connects land managers and decision-makers with useable science to address climate change in planning and application. The CCRC plays a key role in the USDA Climate Hubs’ effort to help land managers (the Forest Service, other agencies, and the general public) understand and respond to a changing climate. Read more »
A pine burns with snow on the ground on the Boise National Forest (Photo Credit: US Forest Service)
There was a time when fire season for Western states meant only certain months out of the year. Not so long ago the U.S. Forest Service considered it primarily a summer problem with a few regions breaking the trend in early spring and late fall.
But climate change, according to most wildland fire experts, has turned fire season into a year-round issue.
What used to slow down fire season was winter—a long and cold time of year with lots of snow that killed off many invasive or destructive pests and filled rivers and reservoirs with ample water to supply the needs of millions living in the West. Read more »
Betts, L. (2011). Iowa Field Erosion (pp. Topsoil as well as farm fertilizers and other potential pollutants run off unprotected farm fields when heavy rains occur.). Iowa: NRCS.
USDA’s Regional Climate Hubs were established in February of 2014 to deliver science-based knowledge, practical information, and program support to farmers, ranchers, forest landowners, and resource managers to support climate-informed decision-making in light of the increased risks and vulnerabilities associated with a changing climate. As part of their function, the Hubs were tasked with providing periodic regional assessments of risk and vulnerability to production sectors and rural economies, building on material provided under the National Climate Assessment conducted through the United States Global Change Research Program (USGCRP). With the publication of this Vulnerability Assessment, the Midwest and Northern Forests Regional Climate Hubs are providing their stakeholders with an introduction to the region, regional sensitivities and adaptation strategies for working lands, a greenhouse gas emissions profile with mitigation opportunities, and an overview of how partner USDA agencies are being affected by a changing climate. This vulnerability assessment is an important first step in establishing a baseline “snapshot” of current climate vulnerabilities, and provides region-specific adaptation and mitigation strategies to increase the resilience of working lands in the region. Read more »
Maps showing the study area and locations of stream temperature data that were contributed by hundreds of people working for more than 80 natural resource agencies to develop high-resolution stream temperature scenarios that encompass 450,000 kilometers of stream. (Courtesy of U.S. Forest Service Rocky Mountain Research Station)
Climate change and species invasions raise fears that iconic cold-water species like trout, salmon, and char could be extirpated from most of their ranges this century.
A new study by researchers at the U.S. Forest Service Rocky Mountain Research Station published in Global Change Biology shows that high-resolution stream temperature scenarios can be used to forecast which streams will serve as climate refuges for native cutthroat and bull trout later this century and that many streams are forecast to be too cold to be invaded by non-native species. Read more »
A Limber Pine on the near barren landscape of the Craters of the Moon National Monument & Preserve stands as a strong symbol of the power of one tree. (Photo by Robert Westover, U.S. Forest Service)
The first in a series of blogs honoring the United Nation’s 2015 International Day of Forests
Did you know that carbon dioxide, or CO2, is one of the main contributors to the greenhouse gases that are causing climate change?
And, did you know that one averaged-size tree – say a 30-footer – can store hundreds of pounds of CO2 over its lifetime and even longer if it’s used in building materials for a house or furniture? Read more »