Modern metabolic science yields better way to calculate indoor carbon dioxide

Stringent exhaust gas tests for cars in Europe

Nanoparticles can travel from lungs to blood, possibly explaining risks to heart

India's outsized coal plans would wipe out Paris climate goals

Triggering artificial photosynthesis to clean air

Toronto's subways expose passengers to more air pollution than Montreal, Vancouver systems

West Virginia groundwater not affected by fracking, but surface water is

Ambulances respond more slowly in summer and winter

BP oil spill did $17.2 billion in damage to natural resources, scientists find

Chesapeake Bay pollution extends to early 19th century