Shoot the green eggs back to their nest and let them hit as many gold eggs as possible. Don't drop or damage them! You can also use teleportation: in that case you shoot an egg to a 'black hole' and the egg reappears through another black hole. You can also use cushions to make the egg bounce into the right direction. Don't let the eggs hit the ice, because they'll freeze!
Hold the left mouse button while determining the shooting power and direction. Release to launch the egg.