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Glossary
Glossary

Help us build out the change-maker glossary and make sure terms like sustainability and green economy can become a part of everyone's vocabulary.

Answer
Glossary
If heat rises, why are the upper elevations so cold?
Russell Mckinney
Freelance Ecologists
Answered last year

When hot air rises it expands as the pressure is reduced. That expansion cools the air.

That is why thunderstorms develop on warm humid days. The warm air rises and as it cools the water vapor condenses into droplets or... (More)

Answer
Glossary
How can we avoid greenwashing?
Raul Crawford
Water Resources Specialist
Answered last year

You can’t avoid it but you can look carefully and be aware of it.

If something is advertised as “Green” it is usually a con. The clever wording is what fools you into thinking it is better than what you... (More)

Answer
Glossary
How can zero waste and zero emissions ever be possible and achieved (like the goal for 2050), since we produce waste all ... ecologists want to kill us all or what?

Industrial civilization is destroying the planet in a variety of ways.

Consumers are trying to kill us. You are trying to kill us and you are doing very well. Human civilization will fall. I don’t want that to happen, but... (More)

Answer
Glossary
E10 petrol more environmentally friendly than E5? The higher ethanol content means less energy in the fuel, so drivers ... Will this mean more or less emissions?
Bradley Washington
Ecologist
Answered last year

E10 contains up to 10% Bio ethanol as opposed to E5 which is up to 5% bio-ethanol.

It might be expected that bio ethanol is carbon neutral: i.e. the carbon is absorbed when the source is grown and emitted when... (More)