Lead can linger in bones.
X-ray via www.shutterstock.com.
Lead might not be in paint or gasoline anymore, but since it doesn't break down in the home or the environment it remains a problem throughout the U.S.
Lead exposure is more common than you think.
Children exposed to lead are at elevated risk for learning delays and academic issues.
A Japanese fish found in Washington after hitching a ride in a boat sent across the Pacific Ocean by the 2011 tsunami.
The 2011 Japan tsunami illustrates how more marine creatures are crossing the oceans than ever before - and not all of them are friendly travellers.
Pregnant women in three Australian cities are not told that lead exposure during pregnancy is linked to miscarriage and early delivery.
Parents in three Australian states are being given misleading advice about the dangers of lead to babies and small children – including failing to warn pregnant women about miscarriage risks.
Conflicting evidence means it's tough to tell whether trees helping to clear the air, or if green is not as good as we thought.
Nutrient runoff is one of the major contributors to crown-of-thorns outbreaks.
Crown-of-thorns image from www.shutterstock.com
Despite 15 years of concerted action by the Australian and Queensland governments the health of the reef is not improving and in fact may be continuing to deteriorate.
When researchers combined two industrial waste products they created a material that could clean up mercury.
Ashton Claridge/Flinders University
Could orange peel help clean up the oceans?
Global scrutiny has pummelled VW shares.
The market reaction to the VW emissions scandal is just like that of a jilted lover.
Open-air irrigation: so last century.
A government for the 21st century needs to work out how we can grow our food, manufacture goods and dispose of waste without making such a huge mess.
Traffic is one of the major sources of pollution worldwide, particularly in Asia’s packed cities.
Outdoor air pollution causes 3.3 million premature deaths a year, mainly in Asia. And without policies to cut particulate pollution from traffic, industry and home biofuels, the deaths could double by 2050.
More than thirty chemicals can go down the drain from products we use everyday.
Soap image from www.shutterstock.com
The simple act of shampooing and conditioning our hair, even with green products, results in more than 30 chemicals being washed into our sewers.
Hold your breath.
Ng Han Guan/AP/Press Association Images
The poor air quality at major sporting events can have a damaging affect on athletes' performance and health.
Lots of these: settling ponds precipitate iron oxide and other suspended materials from the Red and Bonita mines near the Gold King Mine.
Newly released data show how the hundreds of abandoned mines in the western US discharge the same volume as the Gold King Mine spill every two days.
Sodium cyanide has a particularly unpleasant reputation but if officials act fast they should be able to limit its damaging effects.
Not pretty: the Gold King Mine spill in Colorado on August 9.
The dramatic wastewater spill in the Animas River is past its critical phase but given the long history of untreated mine waste, there will surely be more like it.
Waterbugs are used for the monitoring of river ecosystem health across the world.
Around the world, waterbugs are the most widely-used indicator of environmental health and pollution of rivers, lakes and wetlands.
The classic peppered moth.
The peppered moth will always hold a special place in the annals of evolutionary biology. Its story is a classic example of natural selection, and of how animals can act as indicators of environmental change.
What fly ash looks like after being stored in an ash dam.
The ash produced by coal mining is particularly harmful to humans. There is a way to reduce that harm and use the ash effectively, though.
A first: limits on carbon emissions from power plants.
Despite looming legal challenges, states are devising plans to comply with limits on power plant carbon emissions – a crucial part of Obama's climate policies.
Batteries can cut carbon emissions, but mining the metals and other resources needed to make them can be a dirty business.
Jon Seb Barber/Wikimedia Commons
The advent of battery storage heralds an even deeper embrace of electric cars and renewable energy. But amid the green tech revolution, we should be wary of creating new pollution problems.