There are many documentaries and shorter videos online that provide background on climate topics. Here's just a small sample.

A Message from the Future with Alexandria Ocasio-Cortez Alexandria Ocasio-Cortez and Avi Lewis. Illustrated by Molly Crabapple. Presented by Naomi Klein and The Intercept, April 17, 2019. (7:35)

Taxes suck . . . carbon Animated video about Canada’s carbon tax (2:29)

Carbon offsets, explained Spoiler: they’re not as great as they sound (4:16)

Plastic Recycling is an Actual Scam The title pretty much says it all. (8:44)

Climate Town YouTube channel or Climate Town website Lots of great information presented in an entertaining way.

Kiss the Ground documentary Inspiring film about regenerative agriculture

Story of Stuff See the classic video and dozens of other informative animated shorts and documentaries.

TED Talks

The Success of Nonviolent Resistance Erica Chenoweth, filmed November 4, 2013, at TEDxBoulder, Boulder, CO. (12:33)

The Most Important Thing You Can Do to Fight Climate Change: Talk About It. Katharine Hayhoe, filmed November 30, 2018 at TED Women, Palm Springs, CA (17:04)

How Trees Talk to Each Other Suzanne Simard. Filmed June 29, 2016, at TEDSummit, Banff, Canada. (18:11)