Environment

The shifting geography of cholera
The shifting geography of cholera
El Niño brings drought to the southern hemisphere and floods to its northern counterpart.
​Air pollution drives mental trauma
​Air pollution drives mental trauma
The air that they breathe kills about 20 000 South Africans each year. The number of those who struggle to breathe, sleep and exercise as a result of...
​Climate change brings failed states and violent conflict
​Climate change brings failed states and violent conflict
The Tabqa Dam in northern Syria brings green and life to an area that would otherwise be a desert. Its water supplies about five million people and...
​A warming world puts the heat on fynbos
​A warming world puts the heat on fynbos
The small strip of land along the Cape coastline is home to one of the most diverse ecosystems on Earth: fynbos. Stretching from Port Elizabeth to...
El Niño dramatically increases number of cholera cases
El Niño dramatically increases number of cholera cases
El Niño brings drought to the southern hemisphere, and floods to its northern counterpart. Its last arrival, across 2015 and 2016, created two...
Public praise drives water-wise behaviour: A lesson for city managers
Public praise drives water-wise behaviour: A lesson for city managers
Applauding people publicly for their successful efforts to reduce water use at home may be an effective means of driving water-wise behaviour...
A river of shit, chemicals, metals flows through our land
A river of shit, chemicals, metals flows through our land
The Olifants River is one of Southern Africa’s most important catchments. Its waters irrigate farming in western Mpumalanga and power Eskom’s...
4 negative myths about renewable energy debunked
4 negative myths about renewable energy debunked
You can’t manage the weatherObservations support this; the sun can hide behind clouds and wind tends to veer between...
More nature equals less obesity and depression
More nature equals less obesity and depression
Humanity now stands on top of nature, either smashing it or carefully curating it into designated spaces. Cement replaces green fields of grassland....
​Three million electric cars by 2050 – if government doesn’t trip itself up
​Three million electric cars by 2050 – if government doesn’t trip itself up
There are about 300 electric cars whooshing along South Africa’s roads. By 2050, there should be three million. The only thing standing in the...
The Anthropocene equation measures the impact of humans
The Anthropocene equation measures the impact of humans
Humans are now the dominant force in changes to the Earth. This is according to a new equation, drawn up by scientists at the Australian National...
Europe’s rhinos the latest target
Europe’s rhinos the latest target
This week’s brutal killing of a rhinoceros in its enclosure at a French zoo points to a new European frontier for poachers that must be closed as...

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