It’s well known that the production of cement — the world’s leading construction material — is a major source of greenhouse gas emissions, accounting for about 8 percent of all such releases.

In Medellín, Colombia, passengers cram aboard a battery-powered bus during the morning commute. Inside, the vehicle is a respite from the crush of cars, taxis, and motorcycles winding through traffic outside.

Policies to encourage reductions in greenhouse gas emissions tend to stress the need to switch as many vehicles as possible to electric power.

A survey of offshore installations extracting oil and natural gas in the North Sea revealed far more leakage of methane, a powerful greenhouse gas, than currently estimated by the British government, according to a research team led by scientists from Princeton University.

The boom in U.S. shale gas and oil production may have ignited a significant global spike in methane emissions blamed for accelerating the pace of the climate crisis, according to research.

Long-term exposure to outdoor air pollutants, especially ozone, accelerates the development of emphysema and age-related decline in lung function, even among people who have never smoked, according to a study published in the Journal of the American Medical Association.

In collaboration with industry, researchers at the National Institute of Standards and Technology (NIST) have completed the first real-world test of a potentially improved way to measure smokestack emissions in coal-fired power plants.

The Trump administration has announced a new rule for power plants that gives states more control over setting limits on greenhouse gas emissions and requires only modest efficiency upgrades at facilities.

About a quarter of the Northern Hemisphere is covered in permafrost. 

A lumpy disc of dark-gray steel covers a bench in the lab space of Boston Metal, an MIT spinout located a half-hour north of its namesake city.