To reach a point when the Earth was significantly warmer than today we’d need to go back 130,000 years, to a time known as the Eemian.
For about 1.8m years the planet had fluctuated between a series of ice ages and warmer periods known as “interglacials”. The Eemian, which lasted around 15,000 years, was the most recent of these interglacials (before the one we’re currently in).
The risks from Zika virus sweeping through the Americas are serious enough that some countries are telling their citizens to put off getting pregnant for months or even years.
To say that 2015 was hot is an understatement. The average recorded temperature across the surface of the planet was so far above normal that it set a record for setting records.
Affluent Chinese are putting two Mexican species at risk due to demand for dried swim bladders. But will this year’s Cites meeting on the wildlife trade force a crackdown?
Rare footage of an elephant herd roaming through Cambodia’s biggest forest sanctuary has signalled the success of a 14-year conservation programme and raised hopes for the endangered species’ survival.