In the area of Climate Change this is blatant, and obvious, and well known. In other areas, it is perhaps more subtle. But because the money is often good, the scientists will quite often tell people what they want to hear.
Start with a hypothesis and diminish any data that does not support it.
Its like the old joke about accountants who are asked what 2 + 2 is. The answer: “what do you want it to be?”.
One of the few "Sciences" that has its theoretical underpinnings based on the discoveries and logic of Karl Marx.