Climate change has already made tropical oceans too hot for some marine species to survive. As they flee towards the poles, the implications for ecosystems and human livelihoods will be profound.
Up-close encounter in the Central African Republic with a black bee-eater, Merops gularis.
Claire Loiseau
An ecologist describes her field research and work on the impact of human activity on birds and their pathogens, which has taken her from Alaska to the Gulf of Guinea.
The Monkeypox virus was isolated most recently in 2012 from a dead infant mangabey (species of monkey) in Ivory Coast.
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A disease suspected to be monkeypox is on the rampage in Nigeria. In less than one month, it has spread to seven of the country’s 36 states and infected 31 people.
The mass of the Earth is big enough that the gravitational force it creates can pull the hard shape of ice, rock and metal into a sphere.
NASA Earth Observatory images by Joshua Stevens, using Suomi NPP VIIRS data from Miguel Román, NASA's Goddard Space Flight Center
Imagine the Earth pulling everything it is made up of, all of its mass, towards its centre. This happens evenly all over the Earth, causing it to take on a round shape.
Tropical forests in the Congo for example have exceptionally high animal and plant species.
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Forests and savannas are expected to be strongly affected in the coming decades by changing rainfall patterns. But land use will also have a major impact.
‘Tropics’ may conjure images of sun-kissed islands, but the expanding tropical zone could bring drought and cyclones further south.
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