ClimateCraft

Adds climate change mechanics. Building, mining, and smelting emit CO2, plants absorb it. Keep the environment in balance or suffer sea level rise, droughts, and wildfires!

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fabricgame-mechanics

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Screenshots

About this Mod

A logo showing a pixelated Earth split in half with a healthy environment on one side and ecological disaster on the other
Minecraft where your actions affect the climate!

Placing blocks, smelting, and other activities emit CO2, which the environment has a limited capability to absorb.

If the CO2 levels get too high, bad things happen.

THE SEA LEVEL RISES!

A wall of furnaces outside a house that has been flooded by sea level rise

A screen with the warning

FIRES BREAK OUT!

Several trees on fire

PLANTS DIE FROM DROUGHT!

An area where some grass has been replaced with sand, dirt, and dead bushes

CORAL BLEACHES AND DIES

A coral reef that has died

ICE CAPS MELT

A split screen image showing ice towers and bare dirt

... UNTIL THE POINT OF NO RETURN!

A flaming hellscape. CO2 levels are in the 5 million range

Mechanics

Most specific values are configurable in climate_config.json.

A note from attamatti: I need play testers! I'm still working to balance all the numbers for good gameplay.

For specifics see the FAQ here.

Carbon Flux

The environment is assumed to be at equilibrium. Placing green blocks or growing plants lowers the total, smelting, building, breaking blocks, and fires add to the total.

Effects of climate change

Sea level rise

As total CO2 crosses certain thresholds sea level rises by one block. Sea level rise is irreversible :(

Any plants inundated by the sea die and disappear.

Drought

As total CO2 increases and temperature rises plants begin to die off.

Each leaf block has a chance to die and disappear.
Each grass block has chance of turning into dirt (60%), packed dirt (25%), or dirt path (15%).
Plants and crops of all kind have a chance of dying and turning into a dead bush.

Crop Failure

As total CO2 rises crops have an increasing chance to die at each growth stage

Wildfire

As total CO2 increases there is an increasing chance for a wildfire to occur. If a wildfire occurs a single fire block will appear on a random tree leaves block and an alert will appear in the HUD.

Failure to put out wildfires before they spread can lead to a cascading environmental disaster!

Coral Bleaching and Ice Melting

When certain thresholds are passed coral bleaches and dies.

Threshold	Coral die off and Ice/snow loss
1	25%
2	50%
4	50%
4	100%

The Apocalypse

If total CO2 gets too high there's no going back. Magma blocks, netherrack, lava, and coal blocks start to appear. They start fires and spew out CO2 in a deadly positive feedback cycle. Your word is probably toast at this point :(

Console commands

climate setco2 <n>: Set total emissions to n

climate hud: Turn on/off on-screen display of CO2 and sea level

climate threshold <type>: View current and pending thresholds for various events. Choose drought, wildfire, ice, coral, or apocalypse

climate log: Turn on/off verbose logging for debugging.

Requirements

Minecraft 1.21.11

Fabric Loader

Fabric API