There is big money to be made by certain climate change groups, and they know how to exploit gullible people to get that money. The "scientists" will skew the data to be favorable in their favor because they will get all this research/grant/govt money to fund whatever they want. As long as they produce the numbers that will ensure they will still get this money, they will keep doing that. They had to change from global warming to climate change because people started calling BS on it when cold spells would happen, so instead they changed it so they can use that excuse on whatever the weather is. Any weather event, seismic event, or anything that has to do with this planet, it can all fall under the giant blanket of "climate change", and say if you give us $$$$$$ we can find a solution to fix this. They get $$$, but no solution, because if they find a solution they will have no longer a reason to get funded and receive free money. So it is an endless cycle to keep the scare going.
But what if they are told they are full of crap and no more money? They will be very vocal and say the entire population of every single animal/plant/living thing will just die in X number of years unless they get their research funded again to find a solution. And if no more funding comes around, the topic will die out until they can find a new boogeyman to scare the world with and back to "we found this thing that will kill everyone on earth. You must give us funding and research money to find a solution before everything dies". And then the whole thing starts all over again.