Sustainability

The conservation of balance in the worlds ecology indefinitely

Development that meets the needs of the present without compromising the ability of future generations to meet their own needs

Environmental , economic, social

Increases demand for water, food, land for houses, and consumption of natural resources

Any substance that burns in oxygen to produce heat

Fuels that were formed from the remains of plants and animals that lived millions of years ago

Compounds consisting of hydrogen and carbon only . What fossil fuels are made of.

Methane + oxygen —-> carbon dioxide + water CH4 +2O2 —-> CO2 +2H2O

The natural trapping of the Sun’s energy by the atmosphere with the help of greenhouse gases like co2

Increasing concentrations of co2 causing the earth to get warmer

The extra warming that results from the enhanced greenhouse effect

Fuels made from plants eg rapeseed oil

Crude oil, timber(wood)

The crude oil is heated and various fractions are separated from it by distillation

Petroleum, diesel, central heating oil

The addition of harmful substances to the environment in quantities greater than can be dealt with efficiently by the environment itself

Sewage, excessive fertilizers, toxic substances

Save crude oil • keep plastic cheap • keep cost of waste disposal cheap • reduce litter (plastics are non-biodegradable)

PET -poly HDPE- high density poly LDPE- low density poly