What roles and responsibilities do engineers have for preventing the increased greenhouse effect?

Develop improved technologies to better clean pollutants emitted from manufacturing and power plants. Develop cleaner industrial and energy production processes, such as solar, wind and hydrogen energy

because of

in a chemical reaction, the atoms and molecules produced by the reaction are called products. no new atoms are created, and no atoms are destroyed. in a chemical reaction, reactants contact each other, bonds between atoms in the reactants are broken, and atoms rearrange and form new bonds to make the products.