Follow National Geographic photographer James Balog across the Arctic as he deploys time-lapse cameras to capture a multi-year record of the world's changing glaciers. Sponsored by Citizens Climate Lobby and the Dallas Sierra Club.

The Solar Car Challenge is designed to motivate students in science, engineering and alternative energy. Students learn how to design, engineer, build and race roadworthy solar cars. The 2013 event features a cross country trip from Dallas to LA beginning July 23. 

On Sunday and Monday, observe the teams as race judges perform final "scrutineering."

Identify yourself with the guard at the South Gate at the Texas Motor Speedway. The TMS entrance is off of SH 114 just west of I35W. Designated parking areas for guests will be identified in the infield area. 

Expo presented by the city of Bedford featuring vendors and exhibitors from energy-saving retailers and renewable energy providers, along with natural gas and other alternatives. Free. 

Hosted by the North Texas Electric Auto Association and AutoNation. Organizers are expecting more than 50 Leafs there this year. Leaf owners and nonowners welcome.

Member is hosting the May meeting at his home. See his John Deere 96 electric riding mower, a neutron push mower and all electric yard tools. He also has two Ego scooter bikes, three electric mopeds, his DIY VW Golf EV and a Nissan Leaf. His neighbor also just got a new Tesla.

For EV drivers, there is one J1772 plug charging station and a 120 volt, which could support 2 or possibly 3 EVs if necessary (plan to bring your good long extension cord).

All monthly meetings are free to attend and open to the public.

Happy-hour forum for people who want to exchange views on how business, the local economy, and ecological practices/sustainability can work together. Discuss a variety of ecological, economy-friendly concepts, including "Good Returns" and "Zero Waste." Contact: Eduardo Hope, dallasgreendrinks@yahoo.com.

Student-organized sustainability and music festival, featuring student bands, economically priced food and booths showcasing environmental organizations and vendors. Free.

Learn about going gas-free. Free.

Free three-day event featuring screenings at six venues with almost 40 documentaries and children’s films. Films focus on issues such as food, water, natural resources and people making a difference.
For a complete listing of films, locations, times and film summaries, visit website.
Contact: Fran Witte at fwitte@cityofirving.org.

Learn about Southlake Green Fest to be held April 6 from one of its organizers.