#emissions

Diesel engines generate higher blow-by because of their compression ratios, making closed crankcase ventilation systems especially important for controlling pressure, emissions, and oil contamination.

A new comparison of Calgary, Edmonton, Minneapolis and Vancouver highlights how local zoning choices shape emissions, infrastructure costs and the political durability of housing reform.

A McGill-led study reports that non-producing oil and gas wells may emit microbial methane at rates about 1,000 times higher than previous estimates.

The World Meteorological Organization says Earth is trapping heat faster than it can release it, adding a new metric to show how deeply the climate system has been disrupted.

Diesel exhaust fluid freezes at 12 degrees Fahrenheit, and that basic chemistry can turn into a real-world operational problem for trucks relying on SCR emissions systems in extreme cold.

A comprehensive global study finds that cap-and-trade carbon markets reduce carbon dioxide emissions more effectively than carbon taxes, providing new empirical evidence for policymakers debating climate tools.