A Closer Look at the Methodology
As part of a continued effort to improve our transparency, we are providing a deeper dive into scoring.
Leaner and Greener
Newsweek's annual rankings reveal the planet's biggest protectors—and polluters.
The World's Greenest Companies
As government efforts slow, our annual rankings show which companies are still carrying the eco-mantle. By Ian Yarett.
Chemicals May Be Another Food-Safety Concern
The Food Safety Modernization Act reflects a growing national concern about bacterial contamination of foods. But while it would go a long way toward dealing with pathogens in our food supply, the bill largely ignores hazardous man-made chemicals.
The Lazy Person's Guide to Being Ecofriendly
There are things individuals can do to be green without breaking a sweat. If you happen to be on the fence about whether you can easily be a greener guy or gal, we'd like to respond with a resounding "yes, you can." We offer seven ways to get started.
How to Choose the Greenest Consumer Products
GoodGuide's mission is to help shoppers pick the greenest shampoo or toothpaste. But is that a business?
The program designed to assess the environmental effects of the BP spill may be skewed by the legal process, say scientists struggling to get funding for independent research.
How Katrina Reshaped Disaster Planning for Kids
Children who survived Hurricane Katrina are at increased risk to suffer mental-health issues today. How their plight is reshaping disaster planning.
How to Avoid 'Blood Gadgets'
In Congo, a vicious war is financed in part by the mining of tin, tantalum, tungsten, and gold—metals that make their way into phones, cameras, and computers.
What the New Report on the Gulf Spill Really Says
Despite widespread media reports claiming that 75 percent of the oil from the gulf spill is gone, up to 50 percent—or nearly 2.5 million barrels—of the oil that was released could conceivably still be out there.
Five Unanswered Questions About the Gulf Spill
More than 100 days after the BP oil-spill disater began, things are finally looking up. But scientists and government officials still have much to learn about the accident and its long-term impact.
BP Oil Leak Halted During Test
For the first time since the accident nearly three months ago, no oil from the Deepwater Horizon well is escaping into the Gulf of Mexico. Officials cautioned that testing is continuing.
Cap Leak Delayed Pressure Test of Oil Well
In the latest setback in efforts to end the spill, pressure testing of the well was delayed after a hydraulic leak in the new cap prevented BP from fully closing it. The test was originally scheduled to start midday Tuesday but was pushed back to late Wednesday, and will now begin "as soon as we can," the company said.
BP Delays Test to Determine Oil Well's Integrity
After days of smooth operations, officials postpone a test to measure pressure within the well, saying they need more time to analyze what different results would mean and to minimize risk.
With New Cap in Place, What Now?
Now that the sealing cap has been installed, all eyes turn to the well-integrity test, which BP is starting today. The test will involve completely "shutting in" the well so the full pressure of the oil gusher can be measured, giving the scientists and engineers a read on the structural stability of the piping that lines the 13,000-foot-long well.
BP Installs New Well Cap
After days of preparation, BP's effort to replace the loose-fitting cap that has been collecting oil for the last few weeks with a sealing cap appears to have gone successfully.
Did Oil Kill the Animals Washing Up in the Gulf?
Determining an oil spill's toll on wildlife is never an easy feat—and the challenging conditions of the current gulf spill make it all the more complicated. While most of the animals collected alive have been visibly covered in oil, the majority of those that have been found dead have had no oil visible on their bodies, making the cause of death difficult to ascertain.
Gulf Oil Spill by the Numbers
The massive oil leak in the Gulf of Mexico is already making history. The well has been hemorrhaging oil for more than two months and is without a doubt the largest offshore spill the U.S. has ever faced. Here's a numerical look at the magnitude of the disaster and the enormous response that has been staged.
James Cameron Is Probably Not the Answer to the Oil Spill
The 'Avatar' director may be an expert in undersea robotics, but that's not the kind of knowledge that's needed to clean up the gulf.
BP Stays Positive Despite Report of Setbacks
Due to stalled progress and mixed messages, the results of BP's ongoing efforts to carry out a "top kill" to stop the oil spill in the Gulf of Mexico are increasingly unclear.
Why Wasn't There a Better Plan?
By law, BP was required to plan for the worst-case scenario if it wanted to drill the gulf. But the report that it filed—and that the government approved—is alarmingly short on solutions.
The Oil Spill's Effects on Deep-Sea Ecology
The deep water of the ocean is the largest habitat on earth but it's also the least understood, making the effects of this deep-sea spill without precedent. As a result, scientists say, the impacts of this spill are likely to go far beyond oiled birds and dead sea turtles.
EPA Tells BP to Use Less-Toxic Dispersants
Today, the EPA directed BP to choose a less-toxic (but equally effective) dispersant for use in combating both the oil slick on the surface and the oil plume gushing from the broken riser on the sea floor.
Does It Work? Kevin Costner's Oil-Cleaning Machine
Kevin Costner has a machine that he says could help clean up the massive oil slick from the ongoing spill in the gulf. Developed with the help of his scientist brother, Dan Costner, the device uses centrifugal force to separate oil from water.
How Robots Help Stop the Gulf Oil Spill
Deep beneath the gulf, robots are the key to stopping the oil spill.
BP Finds Limited Success in Stopping the Oil Flow, but Major Questions Remain
Yesterday, BP reported that it had successfully inserted a specially designed tube into the leaking riser pipe and had begun drawing some of the leaking oil and gas through a mile-long pipe up to a tanker on the surface.
BP Abandons 'Top Hat'—For Now
BP's diagram of the riser insertion tube plan for containing the leaking oil. After reevaluating its options to contain the oil gushing from the Deepwater Horizon well, BP is abandoning—at least for now—plans to use to the "top hat" containment dome to curtail the spill.
Oil Spill Answers: How Much Oil Is Really Leaking From the Deepwater Horizon Well?
We still don't know exactly how much oil has been spilled into the Gulf of Mexico since the Deepwater Horizon rig exploded on April 20, because there is no way to directly measure the flow.
Trouble at the Bottom of the Ocean
Methane hydrate threatens more than the oil-spill cleanup.
BP's Plans to Stop the Oil Spill: So Crazy They Just Might Work?
The failure of BP's first containment dome has Gulf Coast residents despondent and BP engineers scrambling. Fortunately, officials from the beleaguered oil company have several other plans in the works to contain and ultimately stop the oil flow.