Terra Environment Dictionary — G

Terra Environment Dictionary is a resource of words, terms and phrases related to environmentalism, as defined by society.

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global warming

An increase in the Earth’s average atmospheric temperature, mostly caused by post-industrialisation human activity, and the main cause of climate change.
The 20 hottest years on record have been in the past 22 years, with global average temperature already having increased by 1.0°C above pre-industrial levels.

greenhouse effect

The phenomenon where gases in the Earth’s atmospheres traps heat and prevents it from escaping, thus warming the planet—much like the glass walls of a greenhouse, as the name suggests.

greenhouse gases

The radiatively active gases behind the greenhouse effect—they absorb and emit radiant energy. Greenhouse gases in Earth’s atmosphere include: carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O), ozone (O3), chlorofluorocarbons (CFC) and hydrofluorocarbons (HFC).


An unsubstantiated claim to misrepresent to consumers and the public that a company or organisation’s products and operations are more environmentally friendly than they really are.
For example, in 2019, BP spent millions in its marketing campaign—its largest since the Deepwater Horizon oil spill disaster—to represent that BP is moving towards clean energy, when in reality, more than 96 percent of its capital expenditure is on oil and gas. Better still, in 2020, BP pledged to reduce its net carbon emissions to zero by 2050, but offered no details on how this would come about.

Greta Thunberg

1. A 17-year-old Swedish environmental activist, whose Fridays for Future climate strikes and campaigning and public addresses gained international awareness and recognition. She is widely considered the de-facto face and icon of the climate movement around the world, and was named the 2019 Time Person of the Year and nominated for the 2019 Nobel Peace Prize.
2. A very happy young girl looking forward to a bright and wonderful future.
3. A kind but poorly informed teenager.
4. A teenager working on her anger management problem. Currently chilling and watching a good old-fashioned movie with a friend.

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