Study: Maximizing grain yields won't meet future African needs

Maximizing cereal crop yields in sub-Saharan Africa would still fail to meet the region’s skyrocketing grain demand by 2050, according to a new study from the University of Nebraska-Lincoln, Wageningen University and multiple African institutions.

Scientists devise new method to give 'most robust' estimate of Maasai Mara lion numbers

Scientists based at Oxford University have created a new method for counting lions that they say is the most robust yet devised.

Using the Maasai Mara National Reserve and surrounding conservancies in Kenya as a case study, they estimate there to be 420 lions over the age of one in this key territory. At almost 17 lions per 100 square kilometres, that represents one of the highest densities anywhere in Africa.

Warming global temperatures may not affect carbon stored deep in northern peatlands, study says

Deep stores of carbon in northern peatlands may be safe from rising temperatures, according to a team of researchers from several U.S.-based institutions.

And that is good news for now, the researchers said.

Florida State University research scientist Rachel Wilson and University of Oregon graduate student Anya Hopple are the first authors on a new study published today in Nature Communications. The study details experiments suggesting that carbon stored in peat—a highly organic material found in marsh or damp regions—may not succumb to the Earth's warming as easily as scientists thought.

How noise pollution impacts marine ecology

Marine ecologists have shown how noise pollution is changing the behaviour of marine animals - and how its elimination will significantly help build their resilience. Laura Briggs reports.

Building up a library of sound from marine creatures including cod, whelks and sea slugs is important to helping build resilience in species affected by noise pollution, according to Exeter University's Associate Professor in Marine Biology and Global Change Dr Steve Simpson.

Human noise factors including busy shipping lanes, wind farms and water tourism can all impact on the calls of various species - including cod which relies on sound for finding a mate with their "song".

Surge in methane emissions threatens efforts to slow climate change

Global concentrations of methane, a powerful greenhouse gas and cause of climate change, are now growing faster in the atmosphere than at any other time in the past two decades.

That is the message of a team of international scientists in an editorial published 12 December in the journal Environmental Research Letters. The group reports that methane concentrations in the air began to surge around 2007 and grew precipitously in 2014 and 2015.

Flame Retardant Pollution in Great Lakes Is a Serious Matter, Commission Says

The International Joint Commission has developed a strategy for how U.S. and Canadian governments can address this toxic problem.

Wind turbines may have beneficial effects for crops

A multi-year study led by an Iowa State University scientist suggests the turbines commonly used in the state to capture wind energy may have a positive effect on crops.

Gene Takle, a Distinguished Professor of agronomy and geological and atmospheric sciences, said tall wind turbines disbursed throughout a field create air turbulence that may help plants by affecting variables such as temperature and carbon dioxide concentrations.

Against the Tide: A Fish Adapts Quickly to Lethal Levels of Pollution

Evolution is working hard to rescue some urban fish from a lethal, human-altered environment, according to a study led by the University of California, Davis, and published Dec. 9 in the journal Science. 

While environmental change is outpacing the rate of evolution for many other species, Atlantic killifish living in four polluted East Coast estuaries turn out to be remarkably resilient. These fish have adapted to levels of highly toxic industrial pollutants that would normally kill them.

How Tracking Product Sources May Help Save World's Forests

Global businesses are increasingly pledging to obtain key commodities only from sources that do not contribute to deforestation. Now, nonprofit groups are deploying data tools that help hold these companies to their promises by tracing the origins of everything from soy to timber to beef.

NASA Sees Tropical Cyclone 05B Form

An area of tropical low pressure designated System 99B has consolidated and developed into Tropical Cyclone 05B. On Dec. 7 the Visible Infrared Imaging Radiometer Suite (VIIRS) instrument aboard the NASA-NOAA Suomi NPP satellite captured a visible image of Tropical Cyclone 05B over the Anadaman and Nicobar Islands. The VIIRS image showed bands of thunderstorms wrapping around the center from the northern to the eastern quadrants over the Anadaman Islands.