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Sustainability

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Pollution

Industrial emissions

US plants cut toxic fumes by 56% since 2005

Air releases of hydrochloric acid and sulfuric acid by US industrial facilities fell by more than 250,000 tonnes from 2005 to 2015

Refreshing leaded Flint water

US water crisis

The problems that the US city of Flint had with its water were just the first drip in a wider problem, finds Sarah Houlton

London air pollution

Urban air pollution

Nina Notman meets the chemists breathing fresh air into urban air pollution research

A cattle skull on bare ground

TCDD or dioxin

Matt Gunther looks into TCDD, or dioxin, and the tragic Seveso accident

Climate

President-Obama_shutterstock_106142786_630m

Obama says ‘science and reason matter’ in farewell speech

Outgoing US president warns action is needed on climate change

Farewell to ice index

A farewell to ice

Katrina Krämer reviews a book with a cold warning

Chemistry World at Christmas

Christmas gift guide

Our guide to the best books of 2016

scott pruitt new EPA head

Trump’s cabinet picks worry science community

Selections prompt fears of roll-back on environmental research and mass reorganisations of science agencies