July 12, 2013
A Look Into a River's Past
California has funded scientists from the San Francisco Estuary Institute to reconstruct an image of the San Joaquin Delta’s pre-Spanish landscape. They layer navigational charts, government land surveys, drawings, photographs, and journals to paint detailed picture of the Delta ecosystem of 200 years ago.
July 12, 2013
Restoring the San Joaquin River and Recalling its History
California has funded scientists from the San Francisco Estuary Institute to reconstruct an image of the San Joaquin Delta’s pre-Spanish landscape using drawings, photographs, and journals to paint detailed picture of the Delta ecosystem of 200 years ago. Take a look at the Delta's past in this slide show.
July 9, 2013
By the Numbers: The Oil Spill and BP's Legal Troubles
The 2010 Gulf Oil Spill captured the world's attention with the scale of its destruction. It polluted the waters of the Gulf of Mexico with millions of barrels of oil; shut down businesses, fisheries and beaches; and fouled wetlands. Eleven men were killed when the Macondo Well blew out some 45 miles off the coast of Louisiana.
June 14, 2013
Do Dying Trees Lead to More Human Deaths? The Debate Continues
The hypothesis: Trees improve people's health. The experiment: Remove 100 million trees in the eastern and midwestern U.S. over the course of 10 years and see what happens. What happened: People died. Is it that simple? Our readers said, no. So we asked one of the authors of the study to address their concerns.
June 13, 2013
In India, Farmers Pick Heartier Seeds Over Those With High Yields
When a cyclone hits India, the sea-drenched soil can remain salty for years. Farmers are finding new high-yield rice seeds are not withstanding the salty onslaught as well as seeds developed more than a century ago.
June 13, 2013
China Needs Milk and California Has Too Much. Is It a Match?
California dairy farmers are producing milk at higher rates. Meanwhile, milk and cheese are more in demand in countries such as China. The latest "Food for 9 Billion" report examines why the relationship between California's farmers and China's demands is not necessarily a match made in heaven.
June 12, 2013
In Singapore, When You Can't Grow Out, You Grow Up
Singapore's skyline is composed mostly of skyscrapers, so it's no wonder residents are looking up when they're considering places to grow fruits and vegetables in this high-density Asian island.
June 12, 2013
Singapore's Vegetable Towers
In order to grow fresh produce on limited land, Singapore has constructed towers where seedlings grow into eatable plants.
June 11, 2013
In Qatar, Coaxing Food From One of the World's Driest Places
In the small Middle Eastern country of Qatar, where fresh water is scarce and most food is imported, scientists are testing ways to grow vegetables that use more greenhouse gases than they produce.
June 11, 2013
Greening the Deserts of Qatar
Researchers in Qatar are trying new techniques to grow food, such as pumping carbon dioxide into greenhouses and using drip irrigation in sandy plant beds.
June 10, 2013
In Costa Rica, Farmers Start to See Value of Biodiversity
In Costa Rica, birds, bats and bees serve vital roles in controlling pests and pollinating crops. Now, researchers are measuring the contributions of these critters to encourage farmers to move away from the single-crop model and toward biodiversity.
May 6, 2013
In Poland, Pursuing Valuable Energy Deep in the Earth Fuels Dissent Above Ground
Poland recently eased regulations on fracking, with the hope that shale gas will boost the economy, reduce energy dependence and prices. But local residents fear their concerns are taking a backseat to progress. Special correspondent Steve Sapienza reports, as part of a collaboration with the Pulitzer Center on Crisis Reporting.
May 6, 2013
News Flash: EPA Now Accountable to Public
There is nothing more frustrating for a reporter than posing a legitimate, reasonable questions to a representative of a federal agency and, in response, being told to talk to the hand.
May 1, 2013
Conflict of Lease and Legacy Provokes Controversy on the Half Shell
The oysters grown and harvested in Drake's Estero -- part of the Pt. Reyes National Seashore, just north of San Francisco -- are the subject of a national controversy that only seems to grow as a plea by an oyster farm to stay in operation gets closer to federal appeals court.
April 22, 2013
Seattle's Bullitt Center Opens Today as World's Greenest Office Building
Seattle's Bullitt Center bills itself as the world's greenest office building for its net-zero design and local and sustainable materials. The six-story building generates all its own energy, harvests its own water and manages its own waste on site.
April 18, 2013
Texas Plant Blast Kills Up to 15, Injures Hundreds
A massive explosion tore through a fertilizer plant near the town of West, in central Texas, on Wednesday injuring more than 100, destroying several buildings, and sending potentially toxic fumes into the air, according to authorities.
April 10, 2013
Portals to the Past: Cloning the Original Cherry Blossoms
More than 1 million visitors flock to Washington, D.C. every spring to see the cherry blossoms. But the 100-year old trees need to be preserved. Scientists have been cloning the trees to save their heritage.
April 3, 2013
After Oil Spill in Arkansas, Weighing Risks of Keystone Pipeline Extension
An oil pipeline rupture caused the evacuation of more than 20 homes in Mayflower, Ark. The accident raised questions about the safety of the proposed Keystone Pipeline extension. Judy Woodruff hears debate from Anthony Swift of the Natural Resources Defense Council and Andrew Black of the Association of Oil Pipelines.
March 29, 2013
EPA Advances New Proposal for Cleaner Gas Emissions
The Obama administration announced a proposal requiring two-thirds less sulfur in gasoline and a reduction in other emissions beginning in 2017. Judy Woodruff and Juliet Eilperin of the Washington Post discuss the announcement and why it's getting support from auto manufacturers but opposition from the oil and gas industry.
March 26, 2013
'The World Needs You, Badly,' Edward O. Wilson Tells Young Scientists
Edward O. Wilson's "Letters to a Young Scientist" is a book about finding your passion for science and following it faithfully. "Be prepared mentally for some amount of chaos and failure," he writes. "Daydream a lot."
March 15, 2013
Decision Delayed on Dangerous Chemical Found in Drinking Water
Science correspondent Miles O'Brien talks to scientists, members of the chemical industry and representatives from Pacific Gas and Electric about chromium-6 contamination in American drinking water. What is a safe level for humans to consume and why has the EPA stalled on setting a federal standard?
March 14, 2013
Scientists Search for Solution to 'Toxic Cocktail' in Washington's Puget Sound
In Washington state's Puget Sound, scientists have made discovery of a "toxic cocktail," made up of excess rainfall that flows into the nearest body of water, carrying pollutants along with it. Kate Campbell from KCTS-9 in Seattle reports on efforts to prevent that runoff from making it into the sound.
March 13, 2013
Protecting Americans From Danger in the Drinking Water
In part one of a two-part series Miles O’Brien travels to Hinkley, Calif., the town featured in the movie Erin Brockovich, for its multi-million battle over contaminated groundwater. O'Brien reports on the investigation into the chemical Chromium-6, the agency that regulates it and industry's influence on the process.
March 13, 2013
Erin Brockovich: The Real-Life Unhappy Ending
On tonight's NewsHour, Miles O'Brien reports on the decline of Hinkley, Calif., the town featured in the movie Erin Brockovich. Here's the not-so-Hollywood version of what really happened in Hinkley and beyond.
March 12, 2013
Trouble in the Water: Acidifying Oceans Hinder Health of Northwest Shellfish
The world's oceans are absorbing carbon dioxide at an unprecedented rate and the resulting acidification is transforming marine ecosystems. Hari Sreenivasan reports on how ocean acidification is already affecting oysters and other shellfish in the U.S.
March 4, 2013
President Obama Nominates Candidates for Energy and Environmental Team
At the first cabinet meeting of his second term, President Obama announced nominations for the positions of budget, energy, and environmental policy. Gwen Ifill talks with lobbyist Scott Segal of Bracewell & Giuliani LLP and Michael Brune, president of the Sierra Club, to learn more about the president's picks and larger agenda.
Feb. 27, 2013
Donnel Baird Uses Community Power to Generate Green Energy Projects
The rugged setting of Donnel Baird's youth helped shape his social entrepreneur goals later in life.
Feb. 18, 2013
Proposed Keystone Pipeline Prompts Protest March, Heated Debate
The proposed Keystone Pipeline has spurred a large march protest in Washington and heated advocacy from supporters and opponents. Judy Woodruff weighs the debate with Bob Deans of the National Resources Defense Council and Scott Segal of Bracewell and Guiliani, the firm representing energy companies pushing the extension.
Feb. 13, 2013
EPA Contaminated by Conflict of Interest
In 2011, the Environmental Protection Agency was poised to cite evidence of cancer risks in hexavalent chromium, a chemical found in tap water. Yet a special EPA panel urged the agency to delay action, citing research by the American Chemistry Council, a powerful industry lobby. How influential was the ACC in the EPA's decision?
Feb. 13, 2013
Ouster of Scientist from EPA Panel Shows Industry Clout
Deborah Rice served as chair of an EPA panel assessing the safety levels of flame retardants in 2007, but her removal from that panel led some to believe that a powerful industry lobbying group had influenced the EPA and unfairly targeted the scientist.
Feb. 11, 2013
Economic Problems Wash Ashore as Lake Michigan's Water Level Hits Record Low
Lake Michigan, one of the crown jewels of Chicago and the Midwest, has recently experienced a dramatic drop in water levels. As Elizabeth Brackett of WTTW Chicago reports, that drop has created economic problems for towns that border its shore.
Jan. 31, 2013
Al Gore's 'Future' Tackles Technology, Global Economy, American Democracy
Former Vice President Al Gore's new book, "The Future: Six Drivers of Climate Change," examines major shifts in science, technology, the global economy and democracy. Jeffrey Brown talks with the Nobel Prize winner about his vision of the future, as well as the recent sale of Gore's television network Current to Al-Jazeera.
Jan. 31, 2013
Al Gore: Public Conditioned to Accept Atmosphere as 'Open Sewer'
Former Vice President Al Gore expressed concern over the power of special interest on the issue of climate change. “The public is lulled into an acceptance of going along with this policy of using the atmosphere as an open sewer,” Gore told the PBS NewsHour.
Jan. 27, 2013
Finding an Economic, Environmental Win-Win in Davos
One of the topics that's come to the fore at the World Economic Forum over the last decade of meetings is global climate change. A conference bringing thousands of people from across the planet to a little town in the Swiss Alps can't be too self-righteous. At the same time it is making efforts to be green. Green-er, anyway.
Jan. 25, 2013
San Francisco on Track to Become Zero Waste City
San Francisco is trying to become the first city with zero waste. By requiring residents and businesses to separate compostable items such as food scraps, as well as recyclable items, NewsHour correspondent Spencer Michels reports that the city has already reduced a huge amount of garbage from ending up in landfills.
Jan. 25, 2013
Getting Trashed on the Job: My Day in the Dump
San Francisco -- urged on by a state law that mandates recycling -- has adopted a goal of zero waste. That means recycling everything. And that's a little hard to imagine when you're standing waist-deep in garbage at a landfill, surrounded by things you might never consider could be recycled.
Jan. 22, 2013
News Wrap: House GOP Ready to Raise Debt Ceiling Though Mid-May
In other news Tuesday, House Republicans readied to vote on a plan to raise the nation's debt ceiling through May 19th. Rep. Paul Ryan said they wanted to shift focus to making major spending cuts. Also, parts of the Midwest are in a deep freeze, with temperatures dipping to minus 30 degrees Fahrenheit.