In honor of Climate Week, Mark Hertsgaard, executive director of the global media collaboration Covering Climate Now and environment correspondent for The Nation magazine, talks about related events in the city, including Sunday's climate march, plus introduces his group's journalism awards, which honor the best climate journalists and their work. Plus: Amy Westervelt, climate journalist and the executive editor of Drilled, a multimedia climate accountability reporting project and one of Covering Climate Now's climate journalists of the year, talks about her work and how it fits into climate coverage.