Cornell Climate Smart Solutions Program
A Cornell College of Agriculture and Life Sciences website with an excellent list of available educational materials, links to other climate change and nature science websites, lesson plans, curricula and opportunities to get involved.
From their site:
Cornell Climate Smart Solutions Program provides resources and supports youth climate change education through the 4-H youth development program, including youth curriculum and activities, citizen science projects, climate change guidebooks, and materials for youth climate summits. This is a growing collection of resources – which will be continually updated.