[On climate change] The reality is somewhat different. Climate is a leadership and followership game — the leaders are ready for energy transitions, but by themselves, they don’t matter unless followers also come along.
[In reaction to Donald Trump Jr's tweet on air pollution and the relationship between pollution and socioeconomic status] It’s been well established that poorer folks and minority communities tend to live in areas that are more polluted. This isn't particularly new. [The tweet] contradicts what we know, and it's based in ignorance.