Welcome back to another Foolish review of the hottest stocks, as ranked by Motley Fool CAPS. We're looking at the three best-performing industries over the past 30 days, and your favorite long and short candidates in each.

Last time, renewable-fuels firms were shining like the sun at the Equator in August. Get your SPF 45 and shades, Fool; they're still burning bright. Six of the top 10 industries from the past 30 days are involved in green energy.

Impressive, no? I'll say. If not for gaming firms such as International Game Technology (NYSE:IGT) and Giant Interactive (NYSE:GA), this week's top six would have been dominated by ethanol and solar specialists.

According to you, our Foolish readers, the only stock in these industries to own now -- i.e., one with four or five of the maximum five stars in CAPS -- is:

Company

CAPS Stars

No. of CAPS Ratings

Bull Ratio

30-Day Price Change

Archer Daniels Midland

****

1,051

93.1%

30.9%

Sources: Motley Fool CAPS, Yahoo! Finance.

And your favorite short candidates -- i.e., those rated with one or two stars in CAPS -- are:

Company

CAPS Stars

No. of CAPS Ratings

Bear Ratio

30-Day Price Change

U.S. BioEnergy

*

255

57.6%

43.0%

BioFuel Energy

*

68

57.3%

62.2%

VeraSun Energy

*

378

49.2%

41.8%

Aventine Renewable Energy (NYSE:AVR)

*

394

47.5%

44.1%

Pacific Ethanol

*

633

45.0%

83.6%

Sources: Motley Fool CAPS, Yahoo! Finance.

Do you agree? Disagree? Let us know what you think by signing up for CAPS today. It's 100% free to participate.

Cap off your day with related CAPS Foolishness:

Fool contributor Tim Beyers, ranked 10,872 out of more than 79,000 participants in CAPS, held no shares in any of the companies mentioned in this article at the time of publication. Find Tim's portfolio here and his latest blog commentary here. The Motley Fool's disclosure policy is hotter than city asphalt in the summer heat.