Op-Ed Contributors: Save the Wolves of Isle Royale National Park

Connect With Us on Twitter For Op-Ed, follow @nytopinion and to hear from the editorial page editor, Andrew Rosenthal, follow @andyrNYT. Moose first appeared on this Michigan island in the first decade of the 20th century, apparently by...

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Dot Earth Blog: How Technology and Tourism Can Help Sustain Mexico's Sea Turtles

Sea turtles have roamed the oceans for close to 200 million years, surviving assaults that doomed the dinosaurs. Around the world different species now face threats ranging from coastal building to poaching and drowning in fish nets. The latest hot...

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The Week: Celebrating the Web; an Atomic Movie and a Hurricane Over Saturn

Smithsonian Institute/Smithsonian Institution, via Reuters; Don Hurlbert/Agence France-Presse — Getty Images A facial reconstruction of a 14-year-old girl from the Jamestown colony site in Virginia, whose skull, left, shows evidence that her remains...

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Dot Earth Blog: Exploring Environmental Issues and Communication With Students in Japan

Dot Earth is relatively quiescent at the moment because we're in the final sprint finishing the spring term at Pace University, including preparing for the launch of ¡Viva La Tortuga! Meshing Conservation and Culture in Magdalena Bay, our...

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A Dream of Glowing Trees Is Assailed for Gene-Tinkering

Hoping to give new meaning to the term "natural light," a small group of biotechnology hobbyists and entrepreneurs has started a project to develop plants that glow, potentially leading the way for trees that can replace electric streetlamps and potted...

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World Briefing | Africa: Disease Is Ravaging Continent’s Staple

Scientists say a disease destroying entire crops of cassava has spread out of East Africa into the heart of the continent, is attacking plants as far south as Angola and threatens to move west into Nigeria, the world's biggest producer of the potatolike...

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The Week: Celebrating the Web; an Atomic Movie and a Hurricane Over Saturn

Smithsonian Institute/Smithsonian Institution, via Reuters; Don Hurlbert/Agence France-Presse — Getty Images A facial reconstruction of a 14-year-old girl from the Jamestown colony site in Virginia, whose skull, left, shows evidence that her remains...

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Maurice Hilleman, M.M.R. Vaccine’s Forgotten Hero

We live in an epidemiological bubble and are for the most part blissfully unaware of it. Diseases that were routine hazards of childhood for many Americans living today now seem like ancient history. And while every mother could once identify measles...

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Psychiatry’s New Guide Falls Short, Experts Say

Just weeks before the long-awaited publication of a new edition of the so-called bible of mental disorders, the federal government's most prominent psychiatric expert has said the book suffers from a scientific "lack of validity." The expert, Dr....

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E.P.A. Plan to Clean Up Gowanus Canal Meets Local Resistance

Hiroko Masuike/The New York Times A plan by the E.P.A. to clean the Gowanus Canal has run into protests from residents in several Brooklyn neighborhoods. Almost everybody wants the Gowanus Canal cleansed of its toxic gunk. But a $500 million...

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Concussion Fears Lead to Growth in Specialized Clinics for Young Athletes

Charlie Mahoney for The New York Times Brian Lilja is a patient at the Boston Children's Hospital youth sports concussion clinic. His mother, Jennifer, said his injuries caused a "scary" personality change. BOSTON — The drumbeat of alarming stories...

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Eleanor R. Adair, Microwave Safety Researcher, Dies at 86

Edward A. Ornelas Eleanor R. Adair, a scientist who studied microwave radiation, at a test chamber at an Air Force base in San Antonio in 2000. Eleanor R. Adair, a scientist who spent decades exposing monkeys and eventually people (including herself)...

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New York City to Double Number of Storm Evacuation Zones

The Bloomberg administration announced on Friday that it would double to six the number of evacuation zones along New York City's coast and expand them to include an additional 640,000 residents, saying that the new map would provide more flexibility...

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Plans to Harness China’s Nu River Threaten a Region

Sim Chi Yin for The New York Times Ke Shouyi, 47, a farmer in the Lisu ethnic group, prodded his cow to plow the remote rural area near the Nu River in China's Yunnan Province. More Photos » BINGZHONGLUO, China — From its crystalline beginnings...

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Emil Frei III, Who Put Cancer Cures in Reach, Dies at 89

Dr. Emil Frei III, an oncologist whose trailblazing use of combination chemotherapy — in which anticancer drugs are administered simultaneously rather than singly — helped make certain cancers curable for the first time, died on Tuesday at his home...

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Panel Convenes in Washington to Discuss Aliens

WASHINGTON — While President Obama was promoting an immigration overhaul in Mexico, six former members of Congress gathered two blocks from the White House to consider what they see as the enforced government secrecy surrounding another kind of visitor:...

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