Shale gas development spurring spread of invasive plants in Pa. forests

Vast swaths of Pennsylvania forests were clear-cut circa 1900 and regrowth has largely been from local native plant communities, but a team of researchers in Penn State's College of Agricultural Sciences has found that invasive, non-native plants are making significant inroads with unconventional natural gas development.

The spread of invasive non-native plants could have long-term negative consequences for the forest ecosystem in a region where the ubiquitous woods provide timbering revenue, wildlife habitat and ecotourism, warns team member David Mortensen, professor of weed and applied plant ecology.

Shading and Lighting Retrofits Slash Energy Use in New York ''Living Lab'' Office Demonstration

By using advanced lighting and automated shades, scientists from the Department of Energy’s Lawrence Berkeley National Laboratory (Berkeley Lab) found that occupants on one floor of a high-rise office building in New York City were able to reduce lighting energy usage by nearly 80 percent in some areas.

The dramatic results emerged at a “living laboratory” set up to test four sets of technologies on one 40,000 square-foot floor of a building.

Berkeley Lab to Lead Multimillion-Dollar Geothermal Energy Project

The Department of Energy’s Lawrence Berkeley National Laboratory (Berkeley Lab) will lead a new $9 million project aimed at removing technical barriers to commercialization of enhanced geothermal systems (EGS), a clean energy technology with the potential to power 100 million American homes.

Berkeley Lab will partner with seven other DOE national labs and six universities to develop field experiments focused on understanding and modeling rock fractures, an essential element of geothermal systems. Scientists will use the Sanford Underground Research Facility (SURF) in South Dakota to create small-scale fracture networks in crystalline rock 1,500 meters below ground.

Cash for carbon: A cost-effective way to reduce deforestation

A new Northwestern University study suggests that paying people to conserve their trees could be a highly cost-effective way to reduce deforestation and carbon emissions and should be a key part of the global strategy to fight climate change.

The study, led by Seema Jayachandran, associate professor of economics in the Weinberg College of Arts and Sciences at Northwestern, sought to evaluate how effective “Payments for Ecosystems” (PES) is at reducing deforestation. PES is a program in which people are given financial rewards for pro-environment behaviors.

United States' Electric Grid Remains Vulnerable to Natural Disasters, Cyber and Physical Attacks; Actions Needed to Improve Resiliency of the Power System

With growing risks to the nation’s electrical grid from natural disasters and as a potential target for malicious attacks, the U.S. Department of Energy (DOE) and the U.S. Department of Homeland Security (DHS) should work closely with utility operators and other stakeholders to improve cyber and physical security and resilience, says a new congressionally mandated report by the National Academies of Sciences, Engineering, and Medicine.  

The grid remains vulnerable to diverse threats that can potentially cause extensive damage and result in large-area, prolonged outages that could cost billions of dollars and cause loss of life, the report found. The committee that conducted the study and wrote the report recommended ways to make the grid more resilient through the development and demonstration of technologies and organizational strategies that minimize the likelihood that outages will happen, reduce the impacts and speed recovery if they do, all the while developing mechanisms for continual improvements based on changing threats.

Heritage and ancient grain project feeds a growing demand

After a century of markets dominated by a few types of wheat and white flour, ancient and heritage wheat varieties are making a comeback.

Scientists calculate total amount of plastics ever produced

Humans have created 8.3 billion metric tons of plastics since large-scale production of the synthetic materials began in the early 1950s, and most of it now resides in landfills or the natural environment according to a study published today in the journal Science Advances.

Thawing permafrost releases old greenhouse gas

The thawing permafrost soils in the Arctic regions might contribute to the greenhouse effect in two ways: On the one hand rising temperatures lead to higher microbial methane production close to the surface. On the other hand deeper thawing opens new pathways for old, geologic methane. This is shown in a study in the Mackenzie Delta (Canada), conducted by scientists from the German Research Centre for Geosciences GFZ, the Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research (AWI) and partners in the US. The study is published in the journal Nature Scientific Reports.

Nesting aids make agricultural fields attractive for bees

Farmers are facing a problem: Honeybees are becoming ever more rare in many places. But a lot of plants can only produce fruits and seeds when their flowers were previously pollinated with pollen from different individuals. So when there are no pollinators around, yields will decrease.

Mixed outcomes for plants and animals in warmer 2080s climate

More than three quarters of plants and animals in England are likely to be significantly affected by climate change by the end of the century, say researchers.