Posted on July 24, 2015 by Bob Berwyn
Findings suggest human health risks from inhaling pollen laced with neonicotinoids
FRISCO — Scientists with Harvard University’s T.H. Chan School of Public Health say their new study examining pollen and honey shows there’s a need to develop public policies that aims to reduce neonicotinoid exposure.
After working 62 Massachusetts beekeepers who volunteered to collect monthly samples of pollen and honey from foraging bees, the researchers found more that 70 percent of the samples contained at least one neonicotinoid, a class of pesticide that has been implicated the steep decline of honeybee populations, specifically colony collapse disorder, when adult bees abandon their hives during winter.
The study will be published online July 23, 2015 in the Journal of Environmental Chemistry. Not only do these pesticides pose a significant risk for the survival of honey bees, but they also may pose health risks for people inhaling neonicotinoid-contaminated pollen, Lu said. Continue reading
Filed under: biodiversity, Environment, Food | Tagged: Colony collapse disorder, Harvard University, honeybees, neonicotinoids, pesticides, public health | 1 Comment »
Posted on June 13, 2015 by Bob Berwyn
Study suggests that greenhouse gas pollution will have a fundamental impact on plant-nutrient cycles and food production
FRISCO — Increased concentrations of atmospheric carbon dioxide is hindering some plants from absorbing nitrogen, the nutrient governing crop growth in most terrestrial ecosystems.
Concentrations of nitrogen in plant tissue is lower in air with high levels of carbon dioxide, regardless of whether or not the plants’ growth is stimulated, University of Gothenburg (Sweden) researchers found in a new study, published in the journal Global Change Biology.
The study examined various types of ecosystems, including crops, grasslands and forests, and involves large-scale field experiments conducted in eight countries on four continents. Continue reading
Filed under: agriculture, climate and weather, Food, global warming | Tagged: climate change, climate change impacts, food, greenhouse gas pollution, health | 2 Comments »
Posted on May 11, 2015 by Bob Berwyn
Less meat, more vegetables!
Feds eye update to key food guidelines
FRISCO — Conservation activists say that a recent round of comments and petitioning by the public show growing support for a more sustainable federal dietary guidelines, with a shift toward more plant-based food.
At issue is a proposal by the U.S. Department of Health and Human Services to update those guidelines based on the recommendations of a science committee that recommended the changes. Continue reading
Filed under: climate change, Food, global warming | Tagged: climate change, Environment, food, health, public health, sustainable diet | 3 Comments »