Dos:
Feed animals in cold seasons.
Help animals to sirvive.
Clean rivers and lakes.
Be careful with farm waste.
Use fewer cars.
Make Clean Air laws.
Take lorries out of city or town centres.
Pay big money if you're a polluter.
Make laws to control pollution.
Don'ts:
Turn the rivers into dumps.
Build factories on river banks.
Pour toxic waste into the rivers and lakes.
Dump old cars in forests.
Burn toxic waste.
Use rivers for washing cars.