The US government is scaling down its funding for climate change research, and some other mandate areas of the Environmental Protection Agency (EPA), including space science (by NASA). The budget cuts are ongoing and are likely to be deep.
If you are applying for a “US government-sponsored programme or grant” in any of these areas, this might not be the best time, you may want to have a rethink. Compared to anytime within the past last four to ten years, your application stands a lower chance of being successful. (Note, the key phrase is “US government-sponsored programme or grant”). If at all, funding programmes in these areas cannot and will not accommodate as much entries as they did in the recent past.