Wednesday, July 30, 2014

Infants learn what to fear in the first days of life...


Date:
July 28, 2014
Source:
University of Michigan Health System
Summary:
Newborns learn what to fear in the first days of life just by inhaling the scent of their distressed mothers’, new research suggests. And not just “natural” fears: If a mother experienced something before pregnancy that made her fear something specific, her baby will quickly learn to fear it too -- through her scent when she feels fear. Read more:

To those who followed Columbus and Cortez, the New World truly seemed incredible because of the natural endowments. The land often announced itself with a heavy scent miles out into the ocean. Giovanni di Verrazano in 1524 inhaled the cedars of the East Coast a hundred leagues out. The men of Henry Hudson's Half Moon were temporarily disarmed by the fragrance of the New Jersey shore, while ships running farther up the coast occasionally swam through large beds of floating flowers. Wherever they came inland they found a rich riot of color and sound, of game and luxuriant vegetation. As it was...
~  Frederick Turner




Sunday, July 27, 2014

Trees save lives, reduce respiratory problems |

Date:
July 25, 2014
Source:
USDA Forest Service - Northern Research Station
Summary:
In the first broad-scale estimate of air pollution removal by trees nationwide, scientists have calculated that trees are saving more than 850 human lives a year and preventing 670,000 incidences of acute respiratory symptoms. The study considered four pollutants for which the U.S. EPA has established air quality standards: nitrogen dioxide, ozone, sulfur dioxide, and particulate matter less than 2.5 microns (PM2.5) in aerodynamic diameter.  Read More:
 
 

Friday, July 25, 2014

Study shows how to power California with wind, water and sun

A new Stanford study finds that it is technically and economically feasible to convert California's all-purpose energy infrastructure to one powered by clean, renewable energy. Published in Energy, the plan shows the way to a sustainable, inexpensive and reliable energy supply in California that could create tens of thousands of jobs and save billions of dollars in pollution-related health costs.
"If implemented, this plan will eliminate air pollution mortality and global warming emissions from California, stabilize prices and create jobs – there is little downside," said Mark Z. Jacobson, the study's lead author and a Stanford professor of civil and environmental engineering. He is also the director of Stanford's Atmosphere/Energy Program and a senior fellow with the Stanford Woods Institute for the Environment and the Precourt Institute for Energy.


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Thursday, July 24, 2014

How existing cropland could feed billions more

Date:
July 17, 2014
Source:
University of Minnesota
Summary:
Feeding a growing human population without increasing stresses on Earth's strained land and water resources may seem like an impossible challenge. But according to a new report focusing efforts to improve food systems on a few specific regions, crops and actions could make it possible to both meet the basic needs of 3 billion more people and decrease agriculture's environmental footprint. Read More:
 
 

Tuesday, July 01, 2014

Efficient water splitting |

Water splitting:
It is a key in the process of photosynthesis, through which plants produce glucose and oxygen from water and carbon dioxide, using sunlight as energy. However, there are still significant mysteries about the process.
Renewable energy sources such as solar, wind, hydroelectric and geothermal fluctuate over time, and storing this energy is a crucial task for creating a sustainable society.
For Nakamura, this work has exciting future potential. "As seen from a flower in a vase," he explains, "plants can use even tap water as a resource to make fuels. They do not need acid and base solutions. In other words, nature utilizes a safe, clean, and abundant form of water, thereby creating truly sustainable ecosystems. I hope that our findings will be able to contribute to the use of water at a neutral pH as a resource for generating renewable energy, which is one of the foundations for sustainable human societies."
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