The Intergovernmental Panel on Climate Change released
a big report on the
impacts of climate change yesterday. The report looked at
everything from how climate change puts species and societies at
risk, to what rising emissions may mean for marine life and extreme
We pick out some key quotes from the IPCC's Working Group 2
Summary for Policymakers.
Impacts of climate change
"Human interference with the climate system is occurring, and
climate change poses risks for human and natural systems"
"In recent decades, changes in climate have caused impacts on
natural and human systems on all continents and across the
"Some risks of climate change are considerable at 1 or 2°C above
preindustrial level. Global climate change risks are high to very
high with global mean temperature increase of 4°C or more ... and
include severe and widespread impacts on unique and threatened
systems, substantial species extinction, large risks to global and
regional food security"
"Climate-change impacts are expected to exacerbate poverty in
most developing countries and create new poverty pockets in
countries with increasing inequality, in both developed and
Food production & security
"All aspects of food security are potentially affected by
climate change, including food access, utilization, and price
stability (high confidence)."
"Based on many studies covering a wide range of regions and
crops, negative impacts of climate change on crop yields have been
more common than positive impacts (high confidence)."