Nearly two years ago, Jeremiah Mock heard a student in Marin County, California, complain that her school was littered with e-cigarette waste. A health anthropologist by training, Mock did some shoe-leather investigating in a student parking lot, where he found a significant amount of e-cigarette and tobacco trash. Surprised, Mock went further.

More than a hundred groups and hundreds of individuals from Pennsylvania have signed onto a letter to the state’s governor, calling for an official investigation into recent reports of rare cancers in counties heavily impacted by shale gas development over the last decade. The letter also calls for the Governor Tom Wolf to suspend all gas drilling permits until the investigation shows that fracking is not the cause of what appears to be an emerging public health crisis.

Canada will follow the European Union in banning some single-use plastics like straws, bags and cutlery, according to an announcement yesterday by Prime Minister Justin Trudeau. A statement by the government accompanying the announcement notes that without such a prohibition, Canadians will throw away an estimated $8.3 billion worth of plastic materials each year by 2030. Less than 10 percent of the plastic used in Canada gets recycled.

Floods, droughts, record-breaking temperatures – the evidence indicates that addressing climate change has become one of the world’s most pressing issues, which is why the publication of two International Organization for Standards (ISO) standards will have a significant part to play in helping to reduce damaging greenhouse gases. Tackling the effect of greenhouse gas (GHG) emissions on global warming and the subsequent impact on climate change is one of the defining, and intractable, challenges of our time.

Single use plastics are the hot topic of the moment – and with good reason. They’re non-biodegradable meaning once created they will never disappear from the environment. When consumers open the bin to drop their plastic waste in that may be the last they see of it but it’s far from the end of the story.

On February 12, the federal government announced a multimillion-dollar settlement with Shell Oil over a long list of air pollution violations at a petrochemical refinery in Norco, Louisiana. In a statement, EPA Administrator Scott Pruitt said the settlement "demonstrates EPA's dedication" to pursuing pollution violations and protecting public health.

The EPA’s proposed repeal of the Clean Power Plan (CPP) will get three public hearings in the months ahead, as the agency continues its effort to dismantle President Obama’s initiative to reduce emissions from power plants in order to combat climate change.

"First, EPA proposed to revoke the Clean Power Plan, and now they have signaled their intention to replace the Plan with far weaker standards. The Clean Power Plan would have prevented up to 90,000 childhood asthma attacks and 4,500 premature deaths every year once fully implemented. Instead of implementing these lifesaving standards, EPA is moving toward...