"Earth's Growing Nitrogen Threat"
"Last year, reactive nitrogen was identified as one of nine key global pollution threats... ."
"Last year, reactive nitrogen was identified as one of nine key global pollution threats... ."
"The ancient waterways upon which the Aztec Empire was built are now a fraction of their former glory. ... Hidden underneath the murky water, sharing space with discarded soda cans and empty potato-chip bags, an ageless 'water monster' called the axolotl, a central figure in Aztec legend and a protein-rich part of the diet then, is also vanishing."
"A new study suggests that a synthetic chemical that is ubiquitous in the environment and in people's blood may affect the liver -- though the significance for human health remains unclear."
"The Obama administration is broadening the standards for how the U.S. government funds public transportation projects in order to disburse money quickly and improve the environment."
"Even though deep snowdrifts cover his fields in eastern Kansas, Luke Ulrich, a corn and soybean farmer here, is thinking about spring. It's time to buy seed again, but hundreds of seed companies have gone under in the past two decades."
"Hundreds of thousands of Haitians are awaiting the start of a global rescue effort in the wake of the country's devastating earthquake."
"Texas state regulators have detected elevated levels of the cancer-causing chemical benzene near Dish, raising fears that drilling more than 12,000 gas wells across the Barnett Shale could be a health hazard."
"Reports of high cadmium content in children's jewelry imported from China have prompted a senior U.S. senator to press for legislation that would ban the toxic heavy metal as a hazardous substance from those products and toys."
"Exhaust from cars and trucks exacerbates asthma in children and may cause new cases as well as other respiratory illnesses and heart problems resulting in deaths, an independent institute that focuses on vehicle-related air pollution has concluded."
"Elevated exposure to bisphenol A has been linked in a new study to a significantly increased risk of cardiovascular disease, the second time researchers have made a connection between the widely used plastic-making compound and heart ailments."