As we come closer to the doom's day (produced and directed by the green house gases), preventing it gains more importance. It may take only a very visible event to turn everyone on for this problem. Global warming may become an everyday challenge scientists and everybody else would become worried about.
So, what this precisely means is that the green energy, environmental friendly technologies and similar research will be very popular.
Once all this happens, you'll be too late. Go green in your life and in your research.