Sadly the answer to this does not seem to depend on freedom or science. We will see similar things happening in regards to climate, simply if absolute majority

Sadly the answer to this does not seem to depend on freedom or science. We will see similar things happening in regards to climate, simply if absolute majority of people get convinced that it is an emergency. With vaccines we have many times repeated experiment that not using the vaccine causes death, so majority of people support them. With climate change we do not have nearly the same level of confidence about the exact details of what is going to happen, and how exactly our actions are going to affect it, so only a minority supports it so far.