When we think about climate, we tend to think about the atmosphere. But it's important to also think about the ocean, since water holds more heat than air - and also lots of carbon dioxide!
“Our chapter on the Oceans shows that warming of the oceans accounts for more than 90% of the energy stored by the climate system over the last 50 years. Sea levels have risen by 0.19 m since 1901, with more rapid rise in recent decades. Changes in ocean salinity show that precipitation and evaporation over the oceans has changed. The oceans have slowed climate change by absorbing about 30% of the carbon dioxide emitted by human activities, but this has come at the cost of ocean acidification.“
That's a quote of Steve Rintoul, one of the lead authors of the chapter on oceans in the new IPCC report on climate change. He also says:
"After 4 years, multiple drafts, assessment of more than 10,000 published studies, and preparing written responses to more than 50,0000 reviewer comments, it is a little hard to believe the assessment is now complete."
So, I hope you read some of the report instead of just reading what other people say about it. The whole report is coming out on Monday September 30, and you'll be able to find it at this link! But for the first part, Climate Change 2013: The Physical Science Basis, you can already read the Summary for Policymakers.