In interviews and e-mail exchanges , many climate specialists who have seen the film quibbled about details but tended to agree with Eric Steig , a University of Washington geochemist who posted his reactions at the Web log realclimate.org after a recent Seattle screening : '' The small errors do n't detract from Gore 's main point , which is that we in the United States have the technological and institutional ability to have a significant impact on the future trajectory of climate change . ''