Based on the aggregated intelligence of 180,000-plus investors participating in Motley Fool CAPS, the Fool's free investing community, the Market Vectors Environmental Services ETF (NYSE: EVX) has earned a respected four-star ranking.

With that in mind, let's take a closer look at Market Vectors Environmental Services and see what CAPS investors are saying about the ETF right now.

Market Vectors Environmental Services facts

Inception October 2006
Total Assets $23.3 million
Investment Approach Seeks to replicate the AMEX Environmental Services Index, which is comprised of common stocks and ADRs involved in the environmental services industry.
Expense Ratio 0.55%
Dividend Yield 1.1%
1-Year / 3-Year / 5-Year Annual Returns (9.5%) / 13.1% / 2.2%
Top Holdings with High CAPS Rating (4 or 5 Stars) and Portfolio Weight Waste Management (NYSE: WM) (9.8%)
Republic Services (NYSE: RSG) (9.7%)
Veolia Environnement (NYSE: VE) (8.6%)
Alternatives Global X Waste Management (NYSE: WSTE)
Vanguard Industrials (NYSE: VIS)

Sources: Morningstar and Motley Fool CAPS.

On CAPS, 97% of the 77 members who have rated Market Vectors Environmental Services believe the ETF will outperform the S&P 500 going forward. These bulls include All-Star adoggsemipassive, who is ranked in the top 1% of our community, and GreenMycon.

Having gotten on board a couple of years ago, adoggsemipassive touched on the trend working in the ETF's favor: "[G]oing green and clean is where its at."

Market Vectors Environmental Services, in particular, sports a portfolio whose stocks average solid historical earnings growth of 9%. That's higher than that of main competitor Global X Waste Management (-45%), as well as the broader Vanguard Industrials ETF (1%).

CAPS member GreenMycon elaborates on the bull case:

With a steady global trend of desiring greener and cleaner technologies, companies that make up this ETF are likely to get some of that positive boost. ... With the continued environmental detriment of harvesting our remaining fossil fuels, companies that provide environmental services will definitely start to excel at what they do. Investing in an environmental service ETF should give you good diversity in a field that will have inherent volatility.

What do you think about Market Vectors Environmental Services, or any other ETF for that matter? If you want to retire rich, you need to put together the best portfolio you can. Owning exceptional ETFs is a surefire way to secure your financial future, and on Motley Fool CAPS, thousands of investors are working every day to find them. CAPS is 100% free, so get started!

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This article represents the opinion of the writer, who may disagree with the “official” recommendation position of a Motley Fool premium advisory service. We’re motley! Questioning an investing thesis -- even one of our own -- helps us all think critically about investing and make decisions that help us become smarter, happier, and richer.