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How to brew a greener beer

ByJess Craig

From start to finish, making alcoholic beverages asks a lot from the environment. It takes about 20 gallons of water to produce a single eight-ounce serving of beer and 30 gallons per five-ounce serving of wine. Then there’s the glass and aluminum production for alcohol containers, the plastic and cardboard for packaging, and energy consumption for home and retail refrigeration.


The Critically Endangered Saiga Continues to Face Fluctuating Populations

By Katherine Gallagher Photo: Victor Tyakht , Getty Images

Known for its distinct nose and ribbed horns, the once abundant saiga can trace its history back to the time of woolly mammoths across what eventually became southeastern Europe and Central Asia. Currently considered critically endangered by the International Union for Conservation of Nature (IUCN), these unique antelopes have already gone extinct in their native ranges throughout Ukraine and China—mainly due to excessive hunting.


New Policies Promise a Two-Pronged Win for Wildlife in Nevada

By Matt Skroch and Nic Callero Photo: Kurt Kuznicki

The state of Nevada and the U.S. Bureau of Land Management (BLM) recently took independent though complementary steps to protect the state’s migrating wildlife and sagebrush ecosystem—actions that represent a major leap forward for wildlife habitat conservation in Western states.


Hundreds Of Sharks Swarm Florida Canal To Escape Red Tide

By Josephine Harvey

Hundreds of coastal sharks have flocked to a Florida canal in what experts said is an effort to take refuge from a catastrophic algal bloom that has wreaked havoc on ocean life in the region.


Get Way Up Close and Personal With Beluga Whales

Mary Jo DiLonardo

People aren’t the only ones traveling this summer. In July and August, more than 57,000 beluga whales will migrate from the Arctic to the warmer waters of the Churchill River in Manitoba, Canada.1


Like in ‘Postapocalyptic Movies’: Heat Wave Killed Marine Wildlife en Masse

By Catrin Einhorn Photo: Christopher Harley

An early estimate points to a huge die-off along the Pacific Coast, and scientists say rivers farther inland are warming to levels that could be lethal for some kinds of salmon.


Bizarre Marine Life Movement Might be Indicating Future Mass Extinction

By Charles Stephen

Global warming is causing a more pronounced dip in marine species richness around the equator

By Chhaya Chaudhary , Anthony J. Richardson , David S. Schoeman and Mark J. Costello

The latitudinal gradient in species richness, with more species in the tropics and richness declining with latitude, is widely known and has been assumed to be stable over recent centuries. We analyzed data on 48,661 marine animal species since 1955, accounting for sampling variation, to assess whether the global latitudinal gradient in species richness is being impacted by climate change. We confirm recent studies that show a slight dip in species richness at the equator.


Marine life is fleeing the equator to cooler waters. History tells us this could trigger a mass extinction event

By Anthony Richardson , Chhaya Chaudhary , David Schoeman , Mark John Costello

The tropical water at the equator is renowned for having the richest diversity of marine life on Earth, with vibrant coral reefs and large aggregations of tunas, sea turtles, manta rays and whale sharks. The number of marine species naturally tapers off as you head towards the poles.


Freshwater fish are in “catastrophic” decline with one-third facing extinction, report finds

By Sophie Lewis Photo: Sakis Mitrolidis/AFP Via Getty Images

Thousands of fish species are facing “catastrophic” decline — threatening the health, food security and livelihoods of hundreds of millions of people around the world. New research shows that one-third of all freshwater fish now face extinction.