NASA Investigations Series
http://www.nasa.gov/audience/foreducators/topnav/materials/listbytype/ICS_Weather.html
Educator's Reference Desk
http://www.eduref.org/Virtual/Lessons/index.shtml
NASA Teacher's Lounge
http://quest.nasa.gov/sso/teachers/index.html#Earth
US Global Change Research Office (many links)
http://www.gcrio.org/edu/
Project Atmosphere Canada
http://www.msc-smc.ec.gc.ca/education/teachers_guides/toc_e.html
After the Rain: Clouds (pdf curriculum guide)
ESPHERE: Environmental Science Published for Everyone Around the Earth
http://www.atmosphere.mpg.de/enid/9ed1df541da62df8b008da66ff895004,0/Service/Home_142.html
IPCC Reports
http://www.grida.no/climate/ipcc_tar/wg1/index.htm
http://cires.colorado.edu/education/resources/
http://icp.giss.nasa.gov/education/
http://www.giss.nasa.gov/edu/factory/
http://www.iarc.uaf.edu/education_outreach/k_12.php
http://www.gcrio.org/edu/index.htm
http://science.hq.nasa.gov/education/catalog/programs/elementary_index.html
Keystone Science Center: Carbon Sequestration Curriculum
http://www.keystonecurriculum.org/
http://www.princeton.edu/teacher/tsm/scienceaction/cloud_demonstration.htm
http://hdgc.epp.cmu.edu/teachersguide/teachersguide.htm
http://www.climate.org/topics/links/educational/teachers-links.shtml
GLOBE: Global Observations to Benefit the Environment
http://www.globe.gov/globe_flash.html
http://www.ase.org/section/_audience/educators/
http://www.eelink.net/eeactivities-airandclimate.html
http://www.climatechangeeducation.org/educators.html