Sentences with phrase «found widespread declines»
A study published in Geophysical Research Letters in 2011 found widespread declines in oxygen concentration in the upper ocean between the 1970s and the 1990s.
https://www.scientificamerican.com/ Not exact matches
Although infant sleeping practices have gotten safer over the last twenty years — 86 percent of babies slept with bedding in 1993 to 1995, compared with 55 percent in 2008 to 2010 — study authors found that the decline has slowed since 2000, and hazardous sleeping areas are still a widespread practice, despite doctor recommendations.
To find out if UV - B could be causing widespread decline, zoologist Wendy Palen of the University of Washington, Seattle, and colleagues surveyed 136 suitable breeding sites in the northwestern United States.
In the midst of a widespread decline in bees, particularly in the United States, a few bumblebees are finding a way to cope: shorter tongues.
«Mistiming as a result of climate change is probably a widespread phenomenon, and here we provide evidence that it can lead to population declines,» the researchers write in a paper presenting the findings in today's Nature.
A new study finds that despite declining rates of teen smoking and widespread bans on smoking in public places, 48 percent of middle - and high school students are exposed to secondhand smoke every year.
California Finds Economic Gloom Starting to Lift After nearly five years of brutal economic decline, government retrenchment and a widespread loss of confidence in its future, California is showing the first signs of a rebound.