Well, he's got to get that through Congress, but it sounds promising. Under Obama, NASA was given the "official mission" of making Islamic nations feel better about themselves. While this did have the unintended side effect of leaving the field open for private industry, it was utterly pathetic in comparison to the possibilities.
If people want to freak out over the temperature of the earth and engage in rabid political activity, they can do so with private funds. There's room for basic science and data collection in this field, but the people at NASA have (with some exceptions) destroyed their credibility on this topic.
Shutting down new programs to refocus on space exploration, and restructuring the existing data-collection programs to focus on collecting accurate data without manipulation for public release, seems like an excellent direction to me.