Use re-usable bags when shopping
In the future, families might have new ways to reduce greenhouse gases. You may even make your own electricity with solar panels or from a wind turbine that looks like a chimney.
The maximum speed required by Australian traffic laws help to reduce greenhouse gases. Cars traveling more than 100 km per hour chew up a lot more fuel. In the USA cars are often allowed to travel at 140 km per hour on highways. It is claimed that if the maximum speed in the USA was 95 km per hour, the country would not need to import oil.