Nolan Gardner

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Water Pollution

Learn about the effects of pollution on freshwater.<p>As technology improves, scientists are able to detect more pollutants, and at smaller concentrations, in Earth’s freshwater bodies. Containing traces of contaminants ranging from birth control pills and sunscreen to pesticides and petroleum, our …

Pollution

Rio official jumps into polluted waters to prove they're OK for Olympics

There are big plans for Rio de Janeiro's Guanabara Bay for the 2016 Summer Olympics, where the sailing events will take place. But with a year and a …

Fracking Pollutes Some Water, But Harm is Not Widespread, EPA Says

First major analysis of fracking finds some problems, but no “systemic impacts,” and helps states, cities identify waters that may be vulnerable.<p>The most sweeping review ever of hydraulic fracturing found that it has not caused widespread harm to U.S. drinking water. But the controversial method of …

Rio's Olympic waters won't be tested for viruses despite pollution problems

The International Olympic Committee ruled out conducting viral tests of Rio de Janeiro's sewage-laden waterways ahead of the 2016 games, a top …

International Olympic Committee

This teen just won $100,000 for figuring out a new way to purify drinking water

Maria Elena Grimmett was 11 when she noticed that her family’s well water was tinged brown, and she wondered why.<p>Her curiosity sparked a six-year investigation into a new way to solve a common water pollution problem, and on Tuesday, that inquiry — conducted largely at Grimmett’s dining room table …

India has the most polluted cities, yet the world doesn't pay attention

While Beijing's residents can now breathe a little easier after days of dangerous smog, Delhi's residents are still enmeshed in a haze that offers no …

Pollution Canceled Recess In Beijing

After the severe smog warning in northern China, education officials requested that Beijing students stay indoors.<p>Kids in Beijing won't be going …

Combating Air Pollution in Delhi

<i> (Full disclosure: I'm currently leading a task force on air pollution at the Delhi Dialogue Commission, a think tank of the Delhi government.)</i><i></i>The …

China: Thick smog obscures Beijing landmarks in first ever air pollution red alert

Beijing has issued its first ever red alert, the highest of its four-colour warning system for air pollution. As of 3pm (7am GMT) on 8 December, the …

Beijing's red alert for pollution won't stop life from going on

On Tuesday, China's capital felt the effects of the new restrictions around its air pollution red alert.<p>The red alert — the most serious warning on a …

China Bans Cars As Air Pollution Hits Red-Alert Status

Beijing is at whit’s end about how to solve its awful air pollution problem. Air quality continues to worsen year over year. And after a week of heavy smog in the capital city, authorities banned millions of people from driving on Tuesday.<p>The city ordered private cars off the streets and demanded …

China 'could reach carbon emissions peak by 2023'

The “red alert” issued by the city of Beijing on Tuesday over mass pollution has made many wonder if China can keep its pledge to curb its carbon emissions by the year 2030, but scientists say hitting the target is still possible.<p>It was the first time the smog-shrouded capital declared the highest …

Golfers leery about 2016 Olympics have another reason to skip games: Polluted water

Golf is returning to the Olympics for the first time since 1904, but not everyone is excited for the Rio de Janeiro Games.<p>The format has been scrutinized; as a country can have only four representatives, the tournament won't provide the most competitive field (more than half of the LPGA's top 30 …

Even Far From Shore, Rio Olympic Water Dangerously Polluted, AP Finds

Rio de Janeiro's Olympic waterways are teeming with dangerous pathogens, both far offshore and near land, where raw sewage freely seeps into them, testing by the Associated Press shows.<p>Waters at the host site of the 2016 Summer Olympics were first examined by the AP in July, in the first …

87% of Earth's population lives where the air is toxic

Air pollution in China is getting a lot of press in recent times, especially with sad milestones like the first-ever smog 'Red Alert' in Beijing, but …