This week, we particularly liked… On Monday, Andrea Quong at Red Herring told us how China was about to take aim at global warming. This is latest move by the Chinese government only reinforces the perception already held by many industry observers that China is on its way to becoming a true global powerhouse for alternative energy. On Tuesday, Martin LaMonica at CNET Newsblog informed us that cleantech investing was surpassing telecom and medical devices. Another day, another report report pointing to exceptional and sustained growth in the cleantech sector. This is nothing to alleviate fears of a bubble. On Thursday, Neal Dikeman at the Cleantech Blog let us know that the cleantech media juggernaut was not slowing down. Check out this post for some interesting new cleantech sites. On Thursday, Kevin Bullis at Technology Review told us that new batteries were being readied for GM’s electric vehicle. The cat is now out of the bag – we know who will be fitting the Volt with its batteries. On Thursday, Michael Kanellos at CNET Newsblog informed us that an algae start-up had signed a contract for biodiesel. The potential of algae as a biodiesel feedstock has been in the news a fair bit over the past few months, so it will be interesting to see what happens as firms try to scale up production. The other interesting angle here is that algae has also been identified as a potentially effective sink for for CO2 emissions – this could mean big business. On Friday, Dana Childs at Inside Greentech warned us that corn ethanol could be unprofitable by 2008. The results of the study discussed in this piece are in line with our belief that the wealth of micro and macro factors currently lining up against corn ethanol make it an unattractive long-term proposition for investors. The Week in Cleantech is a weekly roundup of our favorite cleantech and alt energy blog posts and stories from across the web. If you know of a good piece that you think should be included here, don’t hesitate to let us know!