Earth

The cocktail of man-made chemicals that we are exposed to daily is a health risk which current regulations and risk assessment overlook. This is the conclusion of the EU Horizon 2020 EDC-MixRisk project that is now being presented.

People in many parts of the world feed birds in their backyards, often due to a desire to help wildlife or to connect with nature. In the United States alone, over 57 million households feed backyard birds, spending more than $4 billion annually on bird food.

While researchers know that bird feeding can influence nature, they do not know how it influences the people who feed those birds.

The good news is global and local. Keeping inland lakes from turning green means less greenhouse gases entering the atmosphere and contributing to climate change. Healthy drinking water, fishing and recreation opportunities are also increased when waters are not green.

NASA calculated the rainfall rates occurring in Tropical Cyclone Joaninha as it moved through the open waters of the Southern Indian Ocean.

Data from the Global Precipitation Measurement mission (GPM) is used to develop rainfall total estimations and provided a look at rain Joaninha was generating.

A national-scale study of U.S. forests found strong relationships between the diversity of native tree species and the number of nonnative pests that pose economic and ecological threats to the nation's forests.

"Every few years we get a new exotic insect or disease that comes in and is able to do a number on our native forests," says Kevin Potter, a North Carolina State University research associate professor in the Department of Forestry and Environmental Resources and co-author of an article about the research in Proceedings of the National Academy of Sciences.

Many whales take long journeys each year, spending summers feeding in cold waters and moving to warm tropical waters to breed. One theory suggests that these long-distance migrations originated around 5 million years ago, when ocean productivity became increasingly patchy. But patterns of ancient whale migrations have, until recently, been shrouded in mystery. Scientists from the Smithsonian Tropical Research Institute (STRI) and the University of California, Berkeley approached this question with an ingenious technique: barnacles.

A broad-scale study of U.S. forest data suggests a significant - but not simple - relationship between the number of native tree species and the number of nonnative forest pests.

"Invasive insects and diseases pose both ecological and economic threats to our forest ecosystems," says Qinfeng Guo, a research ecologist with the USDA Forest Service Southern Research Station and lead author of an article about the research in Proceedings of the National Academy of Sciences.

Barnacles that hitch rides on the backs of humpback and gray whales not only record details about the whales' yearly travels, they also retain this information after they become fossilized, helping scientists reconstruct the migrations of whale populations millions of years in the past, according to a new University of California, Berkeley, study.

AUGUSTA, Ga. (March 25, 2019) - A synthetic peptide appears to directly disrupt the destructive inflammation that occurs in nephritis, enabling the kidneys to better recover and maintain their important functions, investigators report.

Whether they gave the peptide body-wide or delivered it directly to the kidneys, it reduced the movement of immune cells into the kidneys, resolved inflammation and damage and improved kidney function, without increasing blood pressure, they report in the journal Kidney International.

Teens who choose to spend time alone may know what's best for them, according to new research that suggests solitude isn't a red flag for isolation or depression.

The key factor is choice, say researchers at the University of California, Santa Cruz, and Wilmington College: When solitude is imposed on adolescents and young adults, whether as punishment or as a result of social anxiety, it can be problematic. But chosen solitude contributes to personal growth and self-acceptance, they found.