Without dealing with those big issues, humanity will need 27 planet Earths by 2050, a new study estimates.
The size and number of protected areas on land and sea has increased dramatically since the 1980s, now totaling over 100,000 in number and covering 17 million square kilometres of land and two million square kilometres of oceans, a new study reported Thursday.
Dealing with failure
But impressive as those numbers look, all indicators reveal species going extinct faster than ever before, despite all the additions of new parks, reserves and other conservation measures, according to the study published in the journal Marine Ecology Progress Series.
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