Toyota is making Eco Cars that are environmentally-friendly. Why has Toyota started making environmentally-friendly cars?   The society we live in gets almost all of its energy from oil and other fossil fuels. Some of the uses for oil are making gasoline for cars and kerosene for heaters in winter. However, if we keep using oil in the large amounts that we do now, it is believed that in the future, oil production will start to decline, meaning that “peak oil” will have been reached. That's why we have to use the oil that we have very carefully, by making cars that can run on just a small amount of gasoline and cars that run on fuels that don't come from oil. Predictions of global oil discoveries and consumption Source: www.oilposter.org   Causes of Global CO2 Emissions Source: IEA CO2 Emissions from Fuel Combustion (2009 edition) There are about 965 million cars being driven in the world today, and this number is expected to only get bigger. Approximately 16.7% of all the CO2 emitted in the world comes from cars. We need to work to lower this amount, even if just by a little. Eco Cars are environmentally-friendly cars developed to help reduce the amount of non-renewable resources used and the amount of CO2 produced by producing clean emissions, running efficiently (using little fuel), producing little CO2, and not relying only on oil. Cars have played a big role in the development of the economy and industry as well as lifestyles and culture. But cars use fossil fuels and produce CO2. This is why Toyota is conducting research and development to develop a range of environmentally-friendly vehicles toward realizing the ultimate Eco Car.