In the news this week:

• Mexico City tries to combat pollution with urban vegetation. 
• NYC reps appeal to state to ban natural gas drilling because of risks it poses to drinking water supplies.
• At Power Shift 2009, 12,000 young activists gathered in DC to lobby for energy change. Grist posted photos from the protest.
• China's ZTE unveils $40 solar cell phone that allows users 15 min of talking time for every hour of sunlight.
• American prisons go green: buildings are getting retrofitted with solar panels, biomass boilers and wind turbines. Some work details now include composting and organic gardening.
• Green crusaders to cross Pacific  in boat made from thousands of plastic bottles filled with dry ice.
• A number of companies are creating Chief Sustainability Officer positions in an effort to reduce carbon emissions and save energy.
• Governor declares state of emergency as California heads toward worst drought ever recorded.
• New energy-efficient window cools in summer, heats in winter.
• Fast Company explains what happens to a computer when it's recycled.
• Glacier National Park may be glacier free a decade early.
• Wired highlights five huge green technology projects in the developing world.
• Maryland uses stimulus money to buy 100 hybrid diesel/electric buses.
• Get tax breaks for greening your home.
• New study says couch-potato shoppers are greener than mall rats.
• Ben Jervey has a daily environmental news roundup on  NRDC's Greenlight blog. Check it out!

Think I missed anything really great? Feel free to share it in the Comments section.