Q&A: La Nina's back and it's not good for parts of dry West

For the second straight year, the world heads into a new La Nina weather event. This would tend to dry out parts of an already parched and fiery American West and boost an already busy Atlantic hurricane season.

How geology and climate shape biodiversity

Tropical rainforests are the most biodiverse habitats on Earth. They are home to a huge number of different plants, animals, fungi and other organisms. These forests are primarily spread over three continents, concentrated ...

Has the wildlife 'Red List' let Africa's big cats down?

Lions and cheetahs are closer to extinction than the authoritative Red List of Threatened Species suggests, according to conservation scientists who warn that sharp drops in populations could be going undetected.

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