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Articles on Light pollution

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The New York City borough of Manhattan at night, viewed from the Rockefeller Center observation deck. Sergi Reboredo/VW Pics/Universal Images Group via Getty Images

Artificial light lures migrating birds into cities, where they face a gauntlet of threats

Migrating birds need stopover locations en route where they can rest and feed. A new study shows that artificial light draws them away from sites they would normally use and into risky zones.
Radio observatories like the Green Bank Telescope are in radio quiet zones that protect them from interference. NRAO/AUI/NSF

Radio interference from satellites is threatening astronomy – a proposed zone for testing new technologies could head off the problem

Many telescopes use the radio spectrum to learn about the cosmos. Just as human development leads to more light pollution, increasing numbers of satellites are leading to more radio interference.
Two men watch Ebrahim Raisi, the conservative frontrunner in Iran’s elections, in a televised presidential debate. Abedin Taherkenareh/EPA

Why so many Iranians plan not to vote this month – podcast

Plus, why fireflies need dark nights and what you can do about it. Listen to episode 19 of The Conversation Weekly.
Growth in the port industry is expected to continue, and will intensify the adverse environmental effects on marine ecosystems and coastal communities. (Shutterstock)

How shipping ports can become more sustainable

Marine shipping generates about three per cent of global greenhouse gas emissions, and port activities can add to local pollution. Ports are now taking action to reduce their environmental impacts.

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