The Individual and Combined Impacts of a Real Pollutant versus an Imagined One: How Elevated Ozone and Elevated CO2 Affect Chickpea Growth and Yield Tropospheric ozone (O3) is a gaseous air pollutant that results from incomplete combustion of fossil fuels. It negatively affects plant growth, gaining entry through stomatal openings where it dismutates and generates … Continue reading CO2: Negating Ozone for Plant Productivity