The United States transportation system is at a fundamental crossroads. While car travel is in an unprecedented decline, transit ridership has increased dramatically, even remaining strong as gas prices dropped back down. But diminishing tax revenues are forcing transit systems to make cuts and layoffs.

The U.S. is now poised for a large-scale investment in its transportation infrastructure, but questions remain about how those funds should be spent. We need state and local officials to think creatively about new forms of transportation that match the increasing demand for transit while also addressing national priorities on energy, the economy, and – most importantly – the environment.

EDF created our transit report to help guide this transition. Follow this link to watch a video summary of the report and view case studies that exemplify what the future of transit should be. See if your state made the list! If we missed an innovative project near you let us know by commenting below and/or emailing us at transit@edf.org.  Then, check out our transit blog to learn more.  For instance, could innovative transit help boost real estate development?

Today, EDF has released our Innovations Review 2009 report highlighting innovative businesses that are making green by going green.

Check out our report, and let us know what you think by commenting below.

We've invited you to show us your carbon cap by picking your favorite hat and sending us a "Cap Carbon" picture.

Check out what we've gotten so far, and comment below to let us know what you think makes the best picture.  Is it the funniest hat? The best slogan?

And don't forget to upload a picture of your own!

Check out this "The More You Know" video featuring NBC stars talking about how to conserve energy. There's a list of tips at the bottom – think they missed anything? Add more below, or let us know about other environmental videos you love!

What would the world look like without lights? For one hour, we'll have the chance to find out.

Switch off your lights this Saturday, March 28th, from 8:30 – 9:30 pm, and become part of a global movement against climate change.

EDF is proud to join tens of millions of people around the world who are taking part in Earth Hour — a global event led by the World Wildlife Fund.

Check out the video below to see how powerful just turning off your lights can be. Then, comment to let us know if you'll be participating!

If you need more information, please visit the Earth Hour site.

If so, let us know your thoughts by commenting below.

If not, not to worry. It's scheduled to air again on Discovery this Sunday, March 15, at 11am EDT.  The Discovery Channel will also be releasing a DVD soon, and we'll keep you updated about its release!

You can also order the updated paperback edition of Earth: The Sequel to get a detailed account of the exciting new technologies that are igniting a green energy revolution.

Don't forget to watch Earth: The Sequel Wednesday, March 11th at 10pm on the Discovery Channel! This special gives voice to the green energy inventors and new business leaders, who reveal the secrets behind their cutting edge technologies. Check out the preview below:

Check out this Grist blog post listing 2008's potential eco-heroes.  Is your eco-hero Barack Obama? Thomas Friedman? Or maybe even Paris Hilton or T. Boone Pickens? Vote for who you think should win, and comment below to let us know why!

Watch "Planet in Peril: Battle Lines" in HDTV on Thursday, December 11, at 9 p.m. ET on CNN, hosted by Anderson Cooper, chief medical correspondent Dr. Sanjay Gupta and "The Oprah Winfrey Show" correspondent and National Geographic host Lisa Ling. CNN's award-winning series examines the environmental conflicts between growing populations and natural resources as the three reporters investigate issues Environmental Defense Fund works with every day.

Check out the preview here, and comment below to let us know what you think of the show!  What looks like it will be your favorite part, or what do you hope they'll discuss?

You've seen why others chose to invest in EDF. Now we want to hear your voice.

Comment below to tell us why you chose to donate to our 2008 Global Warming Challenge Grant. Or create a short video of your own and add the link below.

Your comments and videos could be featured on our Facebook page, or might be used in our emails to inspire others to support EDF!

Thank you for sharing your voice with us, and for your donation to EDF.