COVID-19 lockdowns linked to pollution spikes in some cities

Lockdowns last year in response to COVID-19 resulted in drastic cuts to emissions, especially from vehicle tailpipes, and yet some urban areas saw a paradoxical spike in ozone air pollution. A new study led by the National ...

Frequent fire too hot to handle for invasive plants

Land managers know one of the best ways to prevent forest fires is to set fires. Periodic controlled or prescribed burns can reduce the amount of flammable materials lying about on a forest floor, so when wildfires do start, ...

Wastewater treatment at one-third the size and cost

Wastewater treatment systems that combine conventional set-ups with a relatively new technology could reap a host of benefits: smaller plant sizes, lower energy costs and more nitrogen pollution removed.

A deep dive into better understanding nitrogen impacts

A key atomic building block for all living organisms and one of the most abundant elements in the galaxy, nitrogen is an essential part of our ecosystem. But for our ecosystem to function, nitrogen-based compounds must cycle ...

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