Dot Earth Blog: Pete Seeger is Gone, but His Circles of Song Ring On

Pete Seeger spent his life surrounded by circles of song with varying dimensions. He often created them himself, putting a hand to his ear as a signal that he expected any audience encircling a stage to drown him out. Beacon, N.Y., his longtime home...

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Dot Earth Blog: A Critique of an Upbeat Assessment of Nuclear Power’s Prospects

The spent fuel pool at the Indian Point 3 reactor 35 miles north of New York City. The Union of Concerned Scientists, a nonprofit group long focused on risks attending the use of nuclear energy, has posted a critique of the pro-nuclear letter...

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Dot Earth Blog: Fresh Views on Climate Scientists as Advocates

Updated, 4:54 p.m. | "If You See Something, Say Something," is the headline on a Sunday Op-Ed article by Michael E. Mann, the Penn State climate scientist who, after years of attacks from groups fighting restrictions on greenhouse gases, has become...

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Well: Landscapes Tainted by Asbestos

Poison Pen Deborah Blum writes about chemicals and the environment. For the past few years, Brenda Buck has been sampling the dust blowing across southern Nevada. Until recently, she focused on the risks of airborne elements such as arsenic....

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Well: Landscapes Tainted by Asbestos

Poison Pen Deborah Blum writes about chemicals and the environment. For the past few years, Brenda Buck has been sampling the dust blowing across southern Nevada. Until recently, she focused on the risks of airborne elements such as arsenic....

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The Lede: Some West Virginia Residents Can Finally Use Water Again

After officials in West Virginia announced on Monday that a ban on tap water was being lifted, many residents were excited to take a shower again. But the ban was being lifted slowly, zone by zone, starting with hospitals. Most of the 300,000 people...

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Dot Earth Blog: How the Obama Administration Can Get Bluefin Tuna Off the (Wrong) Hook

Lee Crockett, who directs the U.S. Oceans program of The Pew Charitable Trusts, sent a compelling "Your Dot" piece on addressable problems with United States fishing regulations that are perpetuating wasteful catches of bluefin tuna on longlines set...

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Slowly, Asia’s Factories Begin to Turn Green

HO CHI MINH CITY, Vietnam — When Intel went about setting up its chip factory in Vietnam, it found an oddity: Local laws did not govern every aspect of the building. The government had no comprehensive standards, for instance, on refrigerant chemicals,...

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World Briefing | Antarctica: Stuck Ships Break Free Near Antarctica

Two ships immobilized by ice floes near Antarctica broke free on Tuesday, news agencies reported. The Chinese icebreaker Xue Long was trapped Friday after its helicopter evacuated 52 passengers from a Russian research ship, the Akademik Shokalskiy, that...

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$18 Billion Price Put on Effort to Block Carp

Chris Young/The State Journal-Register, via Associated Press The closest sighting of Asian silver carp on the Illinois River was 55 miles from Lake Michigan. The most effective methods of keeping Asian carp from invading the Great Lakes via Chicago's...

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Halton C. Arp, Astronomer Who Challenged Big Bang Theory, Dies at 86

Halton C. Arp, a prodigal son of American astronomy whose dogged insistence that astronomers had misread the distances to quasars cast doubt on the Big Bang theory of the universe and led to his exile from his peers and the telescopes he loved, died...

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Nuclear Fuel Storage Remains Safe, Panel Members Say

WASHINGTON — Most members of the Nuclear Regulatory Commission indicated on Monday that they considered it safe to continue storing most spent nuclear fuel in pools, even though concerns remain about potential accidents and terrorist attacks. At...

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Spain’s Solar Pullback Threatens Pocketbooks

Samuel Aranda for The New York Times Justo Cruz Rodríguez faces ruin after investing in solar power in the Spanish town of Águilas. ÁGUILAS, Spain — Six years ago, Justo Cruz Rodríguez, who runs a small business here designing signs, was looking...

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Colorado River Drought Forces a Painful Reckoning for States

Jim Wilson/The New York Times To help the Colorado, federal authorities this year will for the first time reduce the water flow into Lake Mead, the nation's largest reservoir, created by Hoover Dam. LAKE MEAD, Nev. — The sinuous Colorado River...

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A Resisted Pill to Prevent H.I.V.

SAN FRANCISCO — Over a cup of tea at a downtown Starbucks, Michael Rubio recalled how four friends became H.I.V. positive through unprotected sex, all within a year. The news shocked Mr. Rubio, a 28-year-old gay man, into trying a controversial new...

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Bracing for Carp in Great Lakes, but Debating Their Presence

John Flesher/Associated Press Asian carp, jolted by an electric current from a research boat, in the Illinois River. The Army Corps of Engineers is about to release a proposal to keep the carp from migrating into the Great Lakes. After decades...

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A Lonely Quest for Facts on Genetically Modified Crops

Jim Wilson/The New York Times Greggor Ilagan initially thought a ban on genetically modified organisms was a good idea. KONA, Hawaii — From the moment the bill to ban genetically engineered crops on the island of Hawaii was introduced in May 2013,...

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Dot Earth Blog: Food, Genes and the Feeling of Risk

Updated below, Jan. 4, 4:57 p.m. | Six months ago, Nathanael Johnson, the author of "All Natural" and food blogger for Grist, an unabashedly liberal website, took on the task of digging deep on the risks and rewards of genetic modified organisms in agriculture....

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