Climate Change
Sustainability
Wildlife and Biodiversity
Oceans and Waters
Pollution
100

This natural “blanket” of gases traps heat in Earth’s atmosphere.

What is the greenhouse effect?

100

This "R" comes before "Reuse" and "Recycle."

What is Reduce?

100

This rainforest is home to over 10% of known species on Earth.

What is the Amazon Rainforest?

100

The vast body of saltwater that covers most of the Earth.

What is the ocean?

100

This type of pollution affects rivers and oceans from industrial waste and plastic.

What is water pollution?

200

This global temperature rise threshold is considered the critical limit to avoid catastrophic climate impacts.

What is 1.5 degrees Celsius?

200

Solar and wind energy are examples of this type of resource.

What are renewable resources?

200

This major threat to wildlife involves illegal killing or capturing of animals.

What is poaching?

200

These tiny plastic particles are polluting oceans and harming marine life.

What are microplastics?

200

This dangerous heavy metal can contaminate drinking water and harm the brain, especially in children.

What is lead?

300

The international agreement aimed at reducing greenhouse gas emissions, signed in 2015.

What is the Paris Agreement?

300

This sustainability certification label is often found on coffee and chocolate.

What is Fair Trade?

300

This term describes species that are found only in one specific geographic location.

What is endemic?

300

This phenomenon is caused by excess nutrients leading to low oxygen and dead zones.

What is eutrophication?

300

The main gas responsible for acid rain.

What is sulfur dioxide?

400

The process where melting ice reduces the Earth's reflectivity, causing more warming.

What is the albedo effect?

400

The practice of growing food without synthetic fertilizers or pesticides.

What is organic farming?

400

This is the term for a species that has a disproportionately large impact on its environment.

What is a keystone species?

400

This oceanic phenomenon involves the warming of surface waters in the Pacific Ocean and can disrupt global weather.

What is El Niño?

400

These pollutants remain in the environment for long periods and accumulate in food chains.

What are persistent organic pollutants (POPs)?

500

This phenomenon involves the release of methane gas from thawing Arctic permafrost.

What is permafrost feedback or methane release from permafrost?

500

This index measures human demand on nature compared to Earth’s capacity to regenerate.

What is the ecological footprint?

500

The international treaty created to protect endangered species through regulation of trade.

What is CITES (Convention on International Trade in Endangered Species)?

500

This process involves removing salt from seawater to make it drinkable.

What is desalination?

500

These chemical pesticides, once used widely in farming, were banned in many countries for harming birds like eagles.

What are DDT (or organochlorines)?

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