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Give the jar three taps to shake loose a little paper slip — each one has a small chore to help the environment.

Answer environment trivia to learn as you go. Points arrive every 5 correct answers — accuracy is what pays off, not speed.

Fossil fuels, electricity production, and transportation sit at the center of human-caused climate change. Here's how the numbers actually break down.

Fossil fuel & industry CO₂, approx. tonnes per year

Today's biggest emitter isn't always the biggest historical contributor — some countries have simply been industrialized, and emitting, for far longer.

This sector rivals electricity for the single largest share of emissions. Here's what's actually inside it.

Enteric fermentation is the process by which livestock like cattle produce methane during digestion. It alone accounts for roughly a fifth of all agriculture and land-use emissions.

Flooding a rice paddy creates calm, low-oxygen water — exactly the conditions methane-producing bacteria thrive in. It's a small share of the total, but a distinctive one.

kg of CO₂-equivalent released per kg of food produced

Since electricity, transportation, and land use dominate the picture, the highest-leverage personal choices tend to cluster there too: cutting home energy waste, choosing lower-carbon transport when you can, and shifting a few meals away from the highest-impact foods above. Your Water and Paper tabs, the Chore Jar, and joining a local group are all small, real steps in that same direction.

This is what actually shows up on joined members' calendars. For an ongoing weekly group, use the next upcoming date — you can update it anytime.

Ranked by level, then total points earned this session. Play to climb!