Long term ocean cooling ended with global warming

Prior to the advent of human-caused global warming in the 19th century, the surface layer of Earth's oceans had undergone 1,800 years of a steady cooling trend, according to a new study. During the latter half of this cooling period, the trend was most likely driven by large and frequent volcanic eruptions.

An international team of researchers reported these findings in the August 17, 2015 issue of the journal Nature Geoscience. The study also indicates that the coolest temperatures occurred during the Little Ice Age--a period that spanned the 16th through 18th centuries and was known for cooler average temperatures over land.

High levels of natural uranium identified in 2 major U.S. aquifers

Nearly 2 million people throughout the Great Plains and California live above aquifer sites contaminated with natural uranium that is mobilized by human-contributed nitrate, according to a study from the University of Nebraska-Lincoln.

Quantifying CO2 from Streams

Work by a University of Wyoming professor and a recent UW Ph.D. graduate has provided a more complete picture of the role of rivers and streams in the global carbon cycle.

Neighborhood electric vehicles

While much of the focus of late has been upon mainstream electric vehicles it seems as though the popularity of Neighborhood electric vehicles continues to grow. These vehicles have a history which is far more successful than there larger electric vehicle counterparts but receive very little in the way publicity or promotion. The Global Electric Motor (GEM) brand is by far and away the best known brand in this particular sector having changed hands on numerous occasions in the past.

So, why is it that NEVs continue to sneak under the radar yet gain in popularity?

Commentary on the US plan to reduce carbon emissions

President Obama's plan to cut greenhouse gas emissions may look like a climate victory, writes Tim Kruger - but it's no such thing. It's feeble because the US can meet its targets by reducing emissions to 2030 more slowly than it has since 2000. And it's fragile as any future President can scrap it at will.

Climate change-denying Republicans hate this plan (of course), therefore all good climate realists see it as a triumph. But it is a tiny, tiny step in the right direction and climatically immaterial.

No doubt, you heard the good news. Barack Obama has announced the US is pushing through plans to reduce emissions of greenhouse gases. Rejoice! Rejoice! We've got this climate problem licked - hurrah!

US EPA proposes regulations to reduce methane emissions from landfills

As part of the Administration's Climate Action Plan – Strategy to Reduce Methane Emissions, the U.S. Environmental Protection Agency (EPA) issued two proposals to further reduce emissions of methane-rich gas from municipal solid waste (MSW) landfills. Under today’s proposals, new, modified and existing landfills would begin collecting and controlling landfill gas at emission levels nearly a third lower than current requirements. 

Methane is a potent greenhouse gas with a global warming potential more than 25 times that of carbon dioxide. Climate change threatens the health and welfare of current and future generations. Children, older adults, people with heart or lung disease and people living in poverty may be most at risk from the health impacts of climate change. In addition to methane, landfills also emit other pollutants, including the air toxics benzene, toluene, ethylbenzene and vinyl chloride. 

Which food wastes have greater environmental impacts?

Approximately 31 percent of food produced in the U.S., or 133 billion pounds of food worth $162 billion, was wasted in 2011 according to the United States Department of Agriculture (USDA). Now, University of Missouri researchers have found that the type of food wasted has a significant impact on the environment. Although less meat is wasted (on average) compared to fruits and vegetables, the researchers found that significantly more energy is used in the production of meat compared to the production of vegetables. This wasted energy is usually in the form of resources that can have negative impacts on the surrounding environment, such as diesel fuel or fertilizer being released into the environment.

Long-term Protection Achieved for the Sumatran Forest

One of the last places on Earth where Sumatran elephants, tigers and orangutans coexist in the wild has received long-term protection. The Indonesian Ministry of Forestry approved a conservation concession – a lease of the land – covering 40,000 hectares of forest on the island of Sumatra.

Apes show abilities related to speech

Koko the gorilla is best known for a lifelong study to teach her a silent form of communication, American Sign Language. But some of the simple sounds she has learned may change the perception that humans are the only primates with the capacity for speech.

In 2010, Marcus Perlman started research work at The Gorilla Foundation in California, where Koko has spent more than 40 years living immersed with humans — interacting for many hours each day with psychologist Penny Patterson and biologist Ron Cohn.

"I went there with the idea of studying Koko's gestures, but as I got into watching videos of her, I saw her performing all these amazing vocal behaviors," says Perlman, now a postdoctoral researcher in the lab of University of Wisconsin-Madison psychology Professor Gary Lupyan.

Toxic blue-green algae pose increasing threat to nation's drinking, recreational water

A report concludes that blooms of toxic cyanobacteria, or blue-green algae, are a poorly monitored and underappreciated risk to recreational and drinking water quality in the United States, and may increasingly pose a global health threat.