Scientists worldwide agree that the reduction needed to stabilize the climate is actually more like 80 percent.
'Star Trek' is the McDonald's of science fiction; it's fast food storytelling. Every problem is like every other problem. They all get solved in an hour. Nobody ever gets hurt, and nobody needs to care. You give up an hour of your time, and you don't really have to get involved. It's all plastic.
When I tried to get 'Stargate' made, I took it to every studio in Hollywood and every studio said, 'Sci-fi is dead. It's a dead genre. No one wants to see science fiction anymore.' And I had to go and raise the money independently to make that movie.
If you're looking at my other major science fiction roles - the Doctor on 'Star Trek' and certainly Woolsey on 'Stargate' - I often play characters that might be good theorists and good thinkers, but you wouldn't call either of them very macho characters.
In the history of science, we often find that the study of some natural phenomenon has been the starting point in the development of a new branch of knowledge.
Fundamental science that may not achieve results must be supported at the state level.
On the other hand, the waging of peace as a science, as an art, is in its infancy. But we can trace its growth, its steady progress, and the time will come when there will be particular individuals designated to assume responsibility for and leadership of this movement.
As a child I always steered clear of science fiction, but in the autumn of 1977, the bow-wave of publicity for the first 'Star Wars' movie had already reached me, so I was eager for anything science-fictional.
I don't recall my parents ever steering me toward or away from science. It was more that I was steered toward learning and excellence in the classroom.
I was working with stem cells as part of a NASA programme. We realised that the science of stem-cell proliferation was also fundamental to cancer cells when cancer enters the phase of metastasis.
The average person doesn't understand what a stem cell is. There's a lack of health literacy in our nation. So the public can't really get into this dialogue because they don't understand the complexity of stem cells, not the faith-based approach, not the ideological or political, but the science behind stem cells.
If you look at the most meaningful science fiction, it didn't come from watching other films. We seem to be in a place now where filmmakers make films based on other films because that's where the stimuli and influence comes from.
Christmas renews our youth by stirring our wonder. The capacity for wonder has been called our most pregnant human faculty, for in it are born our art, our science, our religion.
Science fiction always has had strains of pessimism and optimism weaving through its historical development, sometimes one dominating and then the other, usually depending on the state of the world.
Bowling on English pitches is not rocket science. If you bowl a good length on off stump, the ball just has to do a fraction, up or down or side to side, and you get someone out.
In the 1970s, we had Carl Sagan, and he was so suave with his turtleneck and his tweed jacket. And he was, you know, he made science look cool. And in punk rock, we haven't had that. We haven't had the Carl Sagan of punk.
But I think you can strip the emotion and the subjectivity away while you focus on doing the science - and that’s really important.
Always attempting to tame and subjugate nature is not the solution. But the latest science is helping us to map out a path across this shifting landscape in uncertain times, showing us how to work with natural forces, not against them.
I've got a full plate, yes I do. That iPod, that's nice. A phone recorder? Nicely done. All right I'm a bit of a tech geek. I have a subscription to Popular Science and I keep up on all this stuff.
Science is a self-correcting discipline that can, in subsequent generations, show that previous ideas were not correct.
