Over 21% of reptile species at risk of extinction

At least one in five reptile species are threatened with extinction, including more than half of turtles and crocodiles, according to the first major global assessment of the world's so-called cold-blooded creatures.

Moon and Mars superoxides for oxygen farming

The dusty faces of the moon and Mars conceal unseen hazards for future explorers. Areas of highly oxidizing material could be sufficiently reactive that they would produce chemical burns on astronauts' unprotected skin or ...

Each Antarctic tourist effectively melts 83 metric tons of snow

Every summer, as the sea ice surrounding Antarctica retreats, tens of thousands of tourists and scientists flock to the landmass by boat and plane. The remote continent is becoming increasingly accessible—during the 2019-20 ...

Mapping our human footprint from space

The world's population is expected to reach 9.7 billion in 2050, according to the UN Department of Economics and Social Affairs. Urban areas are already home to 55% of the world's population and that figure is expected to ...

Study reveals extent of human impact on the world's plant-life

Research has shed new light on the impact of humans on Earth's biodiversity. The findings suggest that the rate of change in an ecosystem's plant-life increases significantly during the years following human settlement, with ...

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