Climate change will lead to “large crash of species” warns WWF

Global wildlife populations have halved in past four decades, say WWF, with climate change likely to accelerate losses

Populations of mammals, birds, reptiles, amphibians and fish have declined by an average of 52% since the 1970s, according to a report published by WWF, with the most dramatic loses occurring in South America and the Asia-Pacific regions.

The report blames habitat loss and degradation for the declines, driven by “unsustainable levels” of human consumption that is “not inevitable, but a consequence of the way we choose to live”.

Just a week after the UN climate talks in New York, the Living Planet Report also points to the growing impact of climate change on species loss.

Graphic illustrating the projected loss of the world’s forest area over the next 35 years

Climate change has already been linked to the population decline and possible extinction of a number of amphibian species in the Neotropics. And in the Arctic, the effects of a rapidly warming climate have been suggested as likely causes of decline in the numbers of polar bear and caribou.

Although currently estimated to account for around 7% of the species loss, experts working on the report expect that to rise significantly.

“We are going to see a massive increase in the impact of climate change on species,” said Professor Jonathan Baillie, director of conservation programmes at the Zoological Society of London. “We are starting to see it already and we know we are going to see a large crash of species due to climate change.”

WWF chief executive David Nussbaum said he hoped the scale of loss outlined by the report would act as a wake-up call for the ongoing UN climate negotiations as well as talks around a new set of sustainable development goals, due next year.