Billions of refugees seek shelter from deadly weather events, antibiotics have lost their potency, nations wage wars over land and water, and activists not opposed to violence towards humans try to save animals from extinction.
As Richiev and dpg have pointed out this is merely the world that is presented in the film. It’s like a prologue and would be covered in the first 5/10 mins. We need to know what specifically is happening to one (or a few) particular character(s) in this world. Consider Wall-E. In the first 10 mins or so we see the world as it currently is and through newspapers, big screen TV adverts, etc, we learn how and why the world is as it is – this is all done whilst being introduced to Wall-E.
The logline itself doesn’t need to cover the world the story is set in as much detail. SciFi/fantasy is hard to logline for because you do need extra words to allow for the world building stuff but you only need to include stuff that is relevant to the story itself. If the protagonist is a doctor then the bit about antibiotics is more relevant. If they are a refugee, use the bit about refugees. It doesn’t mean that the world doesn’t include all of these elements, it just means the logline only includes the bits that are actually relevant to the story you are trying to tell.
Hope this helps.
COMMENTS FOR UPDATE 1:
Working on the assumption that this is set in a future version of Earth – it has been well established that physical objects simply can’t travel at the speed of light. HOWEVER, I fully appreciate that that’s what scientists say now and in the future it’s possible that they might change their mind and that’s not to mention the fact that this is a sci-fi film. BUT I can’t help but think if we can travel at the speed of light then all of the other stories are rendered irrelevant.
I would focus on one of these three strand to be honest. It’s really hard to give any sort of feedback when you are merely stating characters and what they are doing rather than giving us a story. I don’t care about any of these characters because we have no reason to. If I don’t care then I’m not going to get past the logline.
I also think if a second ice age is induced then surely all the animals that the activists are fighting for will die as will a lot of people. The philosopher bit is just a statement too. It doesn’t mean anything in a storytelling capacity.
I think the version of the world set up in your first attempt is stronger because it’s not confused by the whole light speed bit. In that world you’ve set up, find an individual protagonist and tell us what their story is – inciting incident, character, goal, stakes.
Hope this helps.
The story sets out a situation where the world is going to hell in a hand basket. But who is the main character? What is the inciting incident?
And although the scifi genre allows creative elasticity when it comes to the laws of physics, the scientific “magic” has to have a verisimilitude of being scientifically credible. And I just don ‘t see how traveling at light speed can instantiate another ice age. How can a race-driver who in every second will be 186,000 miles further from the earth be able to pull off that stunt?