Lowering the cost and environmental footprint of white LEDs

Replacing traditional light bulbs with light-emitting diodes (LEDs) could take a significant bite out of global energy consumption. But making white LEDs isn't completely benign or budget friendly. To help reduce the environmental ...

Many unknown chemicals in the Baltic Sea

The researchers examined data from research and monitoring reports from the years 2000-2012, to see what chemicals have been analysed in Baltic Sea fish.

US unveils first federal methane regulations

The United States on Thursday unveiled the first federal regulations on methane—a powerful greenhouse gas that accelerates global warming—aimed at reducing emissions from new oil and gas operations.

NOx gases in diesel car fumes: Why are they so dangerous?

Nitrogen oxides, poisonous gases that contribute to acid rain and suffocating smog, are found in the fumes of diesel cars like the ones Volkswagen has admitted to fitting with emissions-cheating software.

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