Track the Carbon Credit Craze With These Funds By Don Dion About this article: The rent-seeking begins -- check out iPath Global Carbon ETN, up more than 4% in today's trading. GRN tracks carbon-credit indices; if something similar to the bill that passed the House becomes law, it will line the pockets of Al Gore and other investors who've lobbied for these laws. GRN is one way to ride their coattails. Another is AirShares EU Carbon Allowances , which is an ETF rather than an ETN and is structured the same way as commodity ETFs. A note of caution: The two funds have less than $10 million in assets between them, and volume is anemic at best -- about 1,000 shares a day. This sector hasn't attracted investor interest and is unlikely to do so unless the laws change. It would be highly speculative to make a play now, before the Senate has even voted. If this turns into... Or, call us at 1-866-321-TSCM (8726) Monday-Friday, 8 a.m.-6 p.m. ET. Outside the U.S. and in Canada, call 1-212-321-5200. More Stories From RealMoney Durable Goods Up Move Down the Tech Food Chain Jobless Claims Still High Bulls' Tenacity Is the Big Question Mark Should You Buy It? Pharmaceutical Product Development Bad News Trumps All Support for Banks Holds, For Now Bummer, Yields Are on the Rise Money on the Line Makes a Big Difference Structured Products: Unsafe at Any Price MORE STORIES FROM REALMONEY

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