Why could the weather forecast in 2100 be different than today?

July 2100, weather reporter Knutti presents the forecast: “We see heavy precipitation in the Alpine valleys, some roads are still impassable. For the next week or two, a stable high pressure system will settle. This means we expect temperatures above 35 degrees Celsius.” Why could the weather forecast be different than today? ETH professor and C2SM member Reto Knutti explains the evidence and discusses a new vision for our society in his newest Workshop Interview “Vision zero”.