Climate scientists: "Look, we've collected truckloads of data, crunched the numbers and run the models on the world's best supercomputer, and we've found that continuing CO2 emissions are going to start to cause some substantial problems for us. It might be a good idea to cut back."
World: "Alarmist claptrap. It's not warming, and the climate has always changed anyway, and the warming will be good for us."
Astrophysicists: "We've collected the data, crunched the numbers and run the models, and we've shown that asteroid Apophis will miss us in both 2029 and 2036. You can relax now."