Early human migration to Americas linked to climate change

Researchers have pinpointed two intervals when ice and ocean conditions would have been favorable to support early human migration from Asia to North America late in the last ice age, a new paper published today in the Proceedings ...

China's Lunar New Year exodus cools major cities, study shows

During the week-long Chinese New Year, also known as the Lunar New Year, work is suspended, businesses close and nearly 300 million people leave cities to join their families in rural areas for traditional gatherings. The ...

20,000 premature US deaths caused by human-ignited fires

Over 80% of premature deaths caused by small smoke particles in the United States result directly from human-ignited fires. This is the outcome of a study published today in IOP Publishing's journal Environmental Research ...

Ozone layer: how the hole was plugged

In rare good news for the environment, a UN report confirmed Monday that the hole in the ozone layer that had been threatening Earth since the 1980s is shrinking.

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