While Harvey was the most damaging weather event this summer, there were other extremes in the U.S.
See how the summer temperatures and rainfall compared to normal this year in these cities.
Our Sean Sublette on air with CCTV talking all things Hurricane Harvey.
The timing of floods has changed across Europe due to shifts in climate, with some areas seeing earlier floods and some later.
July was record warm for Alaska's northernmost city and the hottest month on record for the globe at Death Valley.
A special report on the aftermath and science of the worst rainstorm in Louisiana's history.
Wildfires are raging across British Columbia. They're the latest sign of climate change in the northern forest.
The Southwest's monsoons are becoming more intense, even as less rain falls on average.
Cities are already suffering from the impacts of extreme heat. It'll only get worse as the climate changes.
Heat and humidity will reach deadly extremes in South Asia if greenhouse gas emissions aren't curtailed.
Miami just had its hottest month on record, fueled by a near-record streak of 90-degree days and sultry nights.
The wild dogs are well adapted to high temperatures but a warming world means pup survival is plummeting.
The record global temperature of 2015 is likely to become the norm by 2040, and possibly even earlier.
Flight delays and restrictions could become more common as temperatures rise due to climate change.
A new, interactive map shows where studies have found a discernible role for warming in extreme weather events.
A scorcher of a heat wave broke temperature records across the West and helped fuel new wildfires.
Arctic melt season has begun in earnest with sea ice at its lowest June volume on record.
Billions of people call cities home, and they're going to get a lot hotter because of climate change.
Weather-related disruptions at so-called "chokepoints" could limit global food supplies and push up prices.
A major heat wave that helped fuel deadly wildfires in Portugal was more likely because of global warming.