Im not a conspiracy theorist but there is a lot of people making lots of money out of "global warming" and they are not about to shout out about things that may detract from their own well being, just they buying and selling of Carbon Credits is worth billions of dollars, not forgetting all the environment scientists that keep themselves in a job, you recon they are going to say or do anything that would see them discredited,
Okay, I'll bite.
It is a scientific fact that our climate is warming. It's not a theory or hypothesis but an actual fact based on scientific observations. There are numerous legitimate sources out there.
The theory part is that 95% of the world's scientists agree that the 400 billion tons of CO2 that we emit every year into our atmosphere is the main cause of global warming. You are correct in that it is not a hundred percent of scientists.
The resulting effect of all this on Sailors is that our weather is much less predictable as the climate models are changing. Changes in the jet stream affect everything.
Another effect on sailors is the likelyhood of occasional storms being more severe than usual. More heat = more energy.
And, Russia is deploying more military in the far north in the expectations of future ice-free polar navigation.