We’ve still got a ways to go until Spring, but we do have baseball and beer for you at this week’s green tech finds:

• A green Mercedes on the way?: We’ll have to see, but Daimler, the brand’s owner, says it plans to challenge BMW’s supremacy in the “green luxury” market by putting half of its $6.4 R&D budget for 2010 into green tech.
  
  
• Rainwater recycling comes to baseball: The Minnesota Twins’ new stadium will feature a rainwater collection and purification system. The water will be used for washing down stands and irrigating the fields (see the video above). (via CNET Green Tech)
  
  
• The “smart” sponge for water pollution: Scientists at the College of Wooster have created a glass-based material that literally soaks up water pollutants… without soaking up water. (via Cleantechnica)
  
  
• Solar-powered beer: Two Colorado microbreweries switched on solar systems last week: Odell Brewing Company and New Belgium Brewing. (via Earth & Industry)
  
  
• Algae-treated wastewater: The town of Hopewell, Virginia, has launched a demonstration project to test algae as an agent for cleaning wastewater (and producing biodiesel in the process). (via Environmental Leader)
  
  
• You’ve got mail: And it may be coming in a three-wheeled electric vehicle (the T3) that the US Postal Service is testing out in three states. (via Gas 2.0)
  
  
• The CES wrap-up: GreenBiz has an overview of a few of the cooler green gadgets that were on display at the 2010 Consumer Electronics Show.
  
  

What did we miss this week? Share your own finds below…