Scientists today completed the world's most
comprehensive review of research into the science, causes, and
impacts of climate change. It's over 5,000 pages long, cites more
than 31,000 pieces of research and has taken seven years to
Here's 10 charts that illustrate the
Intergovernmental Panel on Climate Change's (IPCC) fifth assessment
report, from rising carbon dioxide emissions to transforming the
What's going on?
The first part of
the IPCC's report looks at how human activities affect the climate.
It says scientists are more sure than ever - 95 per cent certain -
that humans are causing extra warming.
1. Emissions are increasing
Since pre-industrial times, the amount of carbon
dioxide in the atmosphere has increased 40 per cent, as this graph
The biggest cause of the increase? Burning fossil
fuels. Land use changes, such as turning forest into farmland, are
the second biggest cause.
2: It's getting warmer
What are the consequences of such as increase? Rising
temperatures, for a start.
This graph shows how temperatures have changed since
1950, and how they're expected to rise in the future:
The earth's surface warmed by approximately 0.85
degrees between 1880 and 2012. Surface temperatures fluctuate
substantially, and warming has occurred more slowly in some decades
than others. But the IPCC's data confirms a long-term warming
If the world cuts emissions aggressively, temperatures
may rise by only around one degree by the end of the century (the
blue chunk of the graph above). But the IPCC says the world is
likely to be 3.7 degrees warmer by 2100 if emissions continue to
increase at the current rate (the red chunk).