Factors that corrupt science are explained/exposed in that video.
What is not clear is how much those factors affect the science. Is modern science totally corrupted by funding biases, publication biases, etc, or is it only a little bit corrupted, or somewhere in between? It is hard to say without empirical data on science itself. What we get in youtube videos is cherry-picked.
If I were to take a guess, however, I would guess that certain topics are a lot more corrupted than others, and climate change is one of those. Add to that media bias and misunderstand which is clear and rampant and please please please don't trust the news about climate change.
However, even within the topic of climate change, there is good research going on and good people trying to discover the truth because that is the core of their soul and the core of what makes them tick. And many of them believe there are significant costs associated with letting the globe warm too much (even as there are also benefits), and that there are no known practical mechanisms for removing the increased CO2 from the atmosphere anytime soon, and therefore caution would indicate that we should try to limit this thing.