There is junk science out there, but not as much as some believe.
The data is evolving on climate change. We do know the climate is changing. But the jury is still out if that is completely natural, completely man-made or as I believe, some combination of the two. However, it is not a horrible idea to err on the side of caution and take better care of our planet.
We had a family dinner this weekend and we were talking about the baby dinosaur that was recently found that has been dated to around 70,000 years ago. One of the relative's boyfriends started arguing vociferously that there is no way the dinosaur could be 70,000 years old because the earth is not that old. While I respect his views and he is entitled to them, they have nothing to do with tried and true science.
And the anti-vaxxers, some of their accusations of government conspiracies and hurting people for money is just plain crazy. Sorry, but eradicating diseases like polio, measles and mumps is a good thing and not some sort of government conspiracy. Also, you cannot get the flu from the flu shot and vaccines do not cause Autism. Blog type of websites that are constantly quoted are not sources of scientific data.