We start forest fires.
We create man made islands.
We make rock quarries.
We build playgrounds.
We plant and harvest crops.
We mine materials.
We do various kinds of excavations.
We build railroads.
We have power lines.
We create global warming.
We create irrigation.
We build canals.
We make golf courses.
We cause erosion.
We drill for oil.
We pump water into the desert for farming.
We Pick flowers.
We go fishing.