DCI

The Zacks Pollution Control industry (Rank #45) benefits from strong demand for air pollution control products driven by rising greenhouse gas emissions and strict global regulations. However, the industry faces headwinds from the growing adoption of renewable energy sources and electric vehicles.

Four key stocks are highlighted: CECO Environmental (Rank #1), LiqTech (Rank #2), Donaldson (Rank #3), and Fuel Tech (Rank #3). The industry has underperformed the S&P 500 over the past year, declining 2.4% versus the index's 16.8% gain.