Michael Bloomberg, a potential 2020 presidential candidate, made a personal pitch to Iowa Monday about the benefits of tackling climate change, ahead of his first visit to the state after the 2018 midterm elections.

“A recent op-ed in the Des Moines Register called for aspiring presidential candidates to present a bold vision for taking on climate change. I couldn’t agree more: We need stronger leadership in Washington on this issue. But Americans aren’t waiting around for it,” Bloomberg wrote Monday in an opinion piece for the Des Moines Register.