Gigatonne · climate strategy game
@gigatonnegame.com
Climate change isn't hard because the science is unclear. It's hard because every fix has a cost, a delay, and someone who will fight it.
A browser game about the next seventy-five years. New century daily, the same one for everyone.
A browser game about the next seventy-five years. New century daily, the same one for everyone.
Gigatonne · Day 60
On the trajectory you inherit today, warming peaks at +2.43°C, taking 4 of 7 Earth-system thresholds with it. The last to go, in 2058:
West Antarctic ice sheet.
Hold the peak under 2.1°C and it stands. Free, in the browser.
On the trajectory you inherit today, warming peaks at +2.43°C, taking 4 of 7 Earth-system thresholds with it. The last to go, in 2058:
West Antarctic ice sheet.
Hold the peak under 2.1°C and it stands. Free, in the browser.
Gigatonne · a climate strategy game
Run the planet from 2026 to 2100. Thirty-eight policy instruments, four hundred gigatonnes, and a populist backlash that wins elections.
gigatonnegame.com
September 22, 2026 at 9:20 AM
Gigatonne · Day 60
On the trajectory you inherit today, warming peaks at +2.43°C, taking 4 of 7 Earth-system thresholds with it. The last to go, in 2058:
West Antarctic ice sheet.
Hold the peak under 2.1°C and it stands. Free, in the browser.
On the trajectory you inherit today, warming peaks at +2.43°C, taking 4 of 7 Earth-system thresholds with it. The last to go, in 2058:
West Antarctic ice sheet.
Hold the peak under 2.1°C and it stands. Free, in the browser.
Gigatonne · Day 59
Today's run, played by nobody: +2.17°C at the peak, 4 of 7 thresholds crossed, mandate over in 2060.
That is the floor. Everyone gets this same century today — see how far above it you land.
Today's run, played by nobody: +2.17°C at the peak, 4 of 7 thresholds crossed, mandate over in 2060.
That is the floor. Everyone gets this same century today — see how far above it you land.
Gigatonne — a climate strategy game
Run the planet from 2026 to 2100. Thirty-eight policy instruments, four hundred gigatonnes, and a populist backlash that wins elections.
gigatonnegame.com
September 21, 2026 at 9:20 AM
Gigatonne · Day 59
Today's run, played by nobody: +2.17°C at the peak, 4 of 7 thresholds crossed, mandate over in 2060.
That is the floor. Everyone gets this same century today — see how far above it you land.
Today's run, played by nobody: +2.17°C at the peak, 4 of 7 thresholds crossed, mandate over in 2060.
That is the floor. Everyone gets this same century today — see how far above it you land.
Gigatonne · Day 58
Do nothing today and it runs as far as 2058 — West Antarctic ice sheet, gone. You are out of office by 2070, at +2.46°C.
400 gigatonnes, 38 instruments, 75 years. Same run for everyone today.
Do nothing today and it runs as far as 2058 — West Antarctic ice sheet, gone. You are out of office by 2070, at +2.46°C.
400 gigatonnes, 38 instruments, 75 years. Same run for everyone today.
Gigatonne — a climate strategy game
Run the planet from 2026 to 2100. Thirty-eight policy instruments, four hundred gigatonnes, and a populist backlash that wins elections.
gigatonnegame.com
September 20, 2026 at 9:20 AM
Gigatonne · Day 58
Do nothing today and it runs as far as 2058 — West Antarctic ice sheet, gone. You are out of office by 2070, at +2.46°C.
400 gigatonnes, 38 instruments, 75 years. Same run for everyone today.
Do nothing today and it runs as far as 2058 — West Antarctic ice sheet, gone. You are out of office by 2070, at +2.46°C.
400 gigatonnes, 38 instruments, 75 years. Same run for everyone today.
Gigatonne · Day 57
Leave today's century alone and warming peaks at +2.40°C, taking 4 of 7 Earth-system thresholds with it, and the public removes you in 2068.
Everyone plays the same century today. Do better than nothing.
Leave today's century alone and warming peaks at +2.40°C, taking 4 of 7 Earth-system thresholds with it, and the public removes you in 2068.
Everyone plays the same century today. Do better than nothing.
Gigatonne — a climate strategy game
Run the planet from 2026 to 2100. Thirty-eight policy instruments, four hundred gigatonnes, and a populist backlash that wins elections.
gigatonnegame.com
September 19, 2026 at 9:20 AM
Gigatonne · Day 57
Leave today's century alone and warming peaks at +2.40°C, taking 4 of 7 Earth-system thresholds with it, and the public removes you in 2068.
Everyone plays the same century today. Do better than nothing.
Leave today's century alone and warming peaks at +2.40°C, taking 4 of 7 Earth-system thresholds with it, and the public removes you in 2068.
Everyone plays the same century today. Do better than nothing.
Gigatonne · Day 56
Today's run, played by nobody: +2.25°C at the peak, 4 of 7 thresholds crossed, mandate over in 2063.
That is the floor. Everyone gets this same century today — see how far above it you land.
Today's run, played by nobody: +2.25°C at the peak, 4 of 7 thresholds crossed, mandate over in 2063.
That is the floor. Everyone gets this same century today — see how far above it you land.
Gigatonne — a climate strategy game
Run the planet from 2026 to 2100. Thirty-eight policy instruments, four hundred gigatonnes, and a populist backlash that wins elections.
gigatonnegame.com
September 18, 2026 at 9:20 AM
Gigatonne · Day 56
Today's run, played by nobody: +2.25°C at the peak, 4 of 7 thresholds crossed, mandate over in 2063.
That is the floor. Everyone gets this same century today — see how far above it you land.
Today's run, played by nobody: +2.25°C at the peak, 4 of 7 thresholds crossed, mandate over in 2063.
That is the floor. Everyone gets this same century today — see how far above it you land.
Gigatonne · Day 55
Do nothing today and it runs as far as 2079 — Amazon dieback, gone. You are out of office by 2079, at +2.72°C.
400 gigatonnes, 38 instruments, 75 years. Same run for everyone today.
Do nothing today and it runs as far as 2079 — Amazon dieback, gone. You are out of office by 2079, at +2.72°C.
400 gigatonnes, 38 instruments, 75 years. Same run for everyone today.
Gigatonne — a climate strategy game
Run the planet from 2026 to 2100. Thirty-eight policy instruments, four hundred gigatonnes, and a populist backlash that wins elections.
gigatonnegame.com
September 17, 2026 at 9:20 AM
Gigatonne · Day 55
Do nothing today and it runs as far as 2079 — Amazon dieback, gone. You are out of office by 2079, at +2.72°C.
400 gigatonnes, 38 instruments, 75 years. Same run for everyone today.
Do nothing today and it runs as far as 2079 — Amazon dieback, gone. You are out of office by 2079, at +2.72°C.
400 gigatonnes, 38 instruments, 75 years. Same run for everyone today.
Gigatonne · Day 54
Leave today's century alone and warming peaks at +2.14°C, taking 4 of 7 Earth-system thresholds with it, and the public removes you in 2059.
Everyone plays the same century today. Do better than nothing.
Leave today's century alone and warming peaks at +2.14°C, taking 4 of 7 Earth-system thresholds with it, and the public removes you in 2059.
Everyone plays the same century today. Do better than nothing.
Gigatonne — a climate strategy game
Run the planet from 2026 to 2100. Thirty-eight policy instruments, four hundred gigatonnes, and a populist backlash that wins elections.
gigatonnegame.com
September 16, 2026 at 9:20 AM
Gigatonne · Day 54
Leave today's century alone and warming peaks at +2.14°C, taking 4 of 7 Earth-system thresholds with it, and the public removes you in 2059.
Everyone plays the same century today. Do better than nothing.
Leave today's century alone and warming peaks at +2.14°C, taking 4 of 7 Earth-system thresholds with it, and the public removes you in 2059.
Everyone plays the same century today. Do better than nothing.
Gigatonne · Day 53
Today's run, played by nobody: +2.37°C at the peak, 4 of 7 thresholds crossed, mandate over in 2067.
That is the floor. Everyone gets this same century today — see how far above it you land.
Today's run, played by nobody: +2.37°C at the peak, 4 of 7 thresholds crossed, mandate over in 2067.
That is the floor. Everyone gets this same century today — see how far above it you land.
Gigatonne — a climate strategy game
Run the planet from 2026 to 2100. Thirty-eight policy instruments, four hundred gigatonnes, and a populist backlash that wins elections.
gigatonnegame.com
September 15, 2026 at 9:20 AM
Gigatonne · Day 53
Today's run, played by nobody: +2.37°C at the peak, 4 of 7 thresholds crossed, mandate over in 2067.
That is the floor. Everyone gets this same century today — see how far above it you land.
Today's run, played by nobody: +2.37°C at the peak, 4 of 7 thresholds crossed, mandate over in 2067.
That is the floor. Everyone gets this same century today — see how far above it you land.
Gigatonne · Day 52
Do nothing today and it runs as far as 2058 — West Antarctic ice sheet, gone. You are out of office by 2058, at +2.11°C.
400 gigatonnes, 38 instruments, 75 years. Same run for everyone today.
Do nothing today and it runs as far as 2058 — West Antarctic ice sheet, gone. You are out of office by 2058, at +2.11°C.
400 gigatonnes, 38 instruments, 75 years. Same run for everyone today.
Gigatonne — a climate strategy game
Run the planet from 2026 to 2100. Thirty-eight policy instruments, four hundred gigatonnes, and a populist backlash that wins elections.
gigatonnegame.com
September 14, 2026 at 9:20 AM
Gigatonne · Day 52
Do nothing today and it runs as far as 2058 — West Antarctic ice sheet, gone. You are out of office by 2058, at +2.11°C.
400 gigatonnes, 38 instruments, 75 years. Same run for everyone today.
Do nothing today and it runs as far as 2058 — West Antarctic ice sheet, gone. You are out of office by 2058, at +2.11°C.
400 gigatonnes, 38 instruments, 75 years. Same run for everyone today.
Gigatonne · Day 51
Leave today's century alone and warming peaks at +2.63°C, taking 4 of 7 Earth-system thresholds with it, and the public removes you in 2076.
Everyone plays the same century today. Do better than nothing.
Leave today's century alone and warming peaks at +2.63°C, taking 4 of 7 Earth-system thresholds with it, and the public removes you in 2076.
Everyone plays the same century today. Do better than nothing.
Gigatonne — a climate strategy game
Run the planet from 2026 to 2100. Thirty-eight policy instruments, four hundred gigatonnes, and a populist backlash that wins elections.
gigatonnegame.com
September 13, 2026 at 9:20 AM
Gigatonne · Day 51
Leave today's century alone and warming peaks at +2.63°C, taking 4 of 7 Earth-system thresholds with it, and the public removes you in 2076.
Everyone plays the same century today. Do better than nothing.
Leave today's century alone and warming peaks at +2.63°C, taking 4 of 7 Earth-system thresholds with it, and the public removes you in 2076.
Everyone plays the same century today. Do better than nothing.
Gigatonne · Day 50
Today's run, played by nobody: +2.57°C at the peak, 4 of 7 thresholds crossed, mandate over in 2074.
That is the floor. Everyone gets this same century today — see how far above it you land.
Today's run, played by nobody: +2.57°C at the peak, 4 of 7 thresholds crossed, mandate over in 2074.
That is the floor. Everyone gets this same century today — see how far above it you land.
Gigatonne — a climate strategy game
Run the planet from 2026 to 2100. Thirty-eight policy instruments, four hundred gigatonnes, and a populist backlash that wins elections.
gigatonnegame.com
September 12, 2026 at 9:20 AM
Gigatonne · Day 50
Today's run, played by nobody: +2.57°C at the peak, 4 of 7 thresholds crossed, mandate over in 2074.
That is the floor. Everyone gets this same century today — see how far above it you land.
Today's run, played by nobody: +2.57°C at the peak, 4 of 7 thresholds crossed, mandate over in 2074.
That is the floor. Everyone gets this same century today — see how far above it you land.
Gigatonne · Day 49
Do nothing today and it runs as far as 2058 — West Antarctic ice sheet, gone. You are out of office by 2059, at +2.14°C.
400 gigatonnes, 38 instruments, 75 years. Same run for everyone today.
Do nothing today and it runs as far as 2058 — West Antarctic ice sheet, gone. You are out of office by 2059, at +2.14°C.
400 gigatonnes, 38 instruments, 75 years. Same run for everyone today.
Gigatonne — a climate strategy game
Run the planet from 2026 to 2100. Thirty-eight policy instruments, four hundred gigatonnes, and a populist backlash that wins elections.
gigatonnegame.com
September 11, 2026 at 9:20 AM
Gigatonne · Day 49
Do nothing today and it runs as far as 2058 — West Antarctic ice sheet, gone. You are out of office by 2059, at +2.14°C.
400 gigatonnes, 38 instruments, 75 years. Same run for everyone today.
Do nothing today and it runs as far as 2058 — West Antarctic ice sheet, gone. You are out of office by 2059, at +2.14°C.
400 gigatonnes, 38 instruments, 75 years. Same run for everyone today.
Gigatonne · Day 48
Leave today's century alone and warming peaks at +2.25°C, taking 4 of 7 Earth-system thresholds with it, and the public removes you in 2063.
Everyone plays the same century today. Do better than nothing.
Leave today's century alone and warming peaks at +2.25°C, taking 4 of 7 Earth-system thresholds with it, and the public removes you in 2063.
Everyone plays the same century today. Do better than nothing.
Gigatonne — a climate strategy game
Run the planet from 2026 to 2100. Thirty-eight policy instruments, four hundred gigatonnes, and a populist backlash that wins elections.
gigatonnegame.com
September 10, 2026 at 9:20 AM
Gigatonne · Day 48
Leave today's century alone and warming peaks at +2.25°C, taking 4 of 7 Earth-system thresholds with it, and the public removes you in 2063.
Everyone plays the same century today. Do better than nothing.
Leave today's century alone and warming peaks at +2.25°C, taking 4 of 7 Earth-system thresholds with it, and the public removes you in 2063.
Everyone plays the same century today. Do better than nothing.
Gigatonne · Day 47
Today's run, played by nobody: +2.89°C at the peak, 5 of 7 thresholds crossed, mandate over in 2085.
That is the floor. Everyone gets this same century today — see how far above it you land.
Today's run, played by nobody: +2.89°C at the peak, 5 of 7 thresholds crossed, mandate over in 2085.
That is the floor. Everyone gets this same century today — see how far above it you land.
Gigatonne — a climate strategy game
Run the planet from 2026 to 2100. Thirty-eight policy instruments, four hundred gigatonnes, and a populist backlash that wins elections.
gigatonnegame.com
September 9, 2026 at 9:20 AM
Gigatonne · Day 47
Today's run, played by nobody: +2.89°C at the peak, 5 of 7 thresholds crossed, mandate over in 2085.
That is the floor. Everyone gets this same century today — see how far above it you land.
Today's run, played by nobody: +2.89°C at the peak, 5 of 7 thresholds crossed, mandate over in 2085.
That is the floor. Everyone gets this same century today — see how far above it you land.
Gigatonne · Day 46
Do nothing today and it runs as far as 2058 — West Antarctic ice sheet, gone. You are out of office by 2074, at +2.57°C.
400 gigatonnes, 38 instruments, 75 years. Same run for everyone today.
Do nothing today and it runs as far as 2058 — West Antarctic ice sheet, gone. You are out of office by 2074, at +2.57°C.
400 gigatonnes, 38 instruments, 75 years. Same run for everyone today.
Gigatonne — a climate strategy game
Run the planet from 2026 to 2100. Thirty-eight policy instruments, four hundred gigatonnes, and a populist backlash that wins elections.
gigatonnegame.com
September 8, 2026 at 9:20 AM
Gigatonne · Day 46
Do nothing today and it runs as far as 2058 — West Antarctic ice sheet, gone. You are out of office by 2074, at +2.57°C.
400 gigatonnes, 38 instruments, 75 years. Same run for everyone today.
Do nothing today and it runs as far as 2058 — West Antarctic ice sheet, gone. You are out of office by 2074, at +2.57°C.
400 gigatonnes, 38 instruments, 75 years. Same run for everyone today.
Gigatonne · Day 45
Leave today's century alone and warming peaks at +2.52°C, taking 4 of 7 Earth-system thresholds with it, and the public removes you in 2072.
Everyone plays the same century today. Do better than nothing.
Leave today's century alone and warming peaks at +2.52°C, taking 4 of 7 Earth-system thresholds with it, and the public removes you in 2072.
Everyone plays the same century today. Do better than nothing.
Gigatonne — a climate strategy game
Run the planet from 2026 to 2100. Thirty-eight policy instruments, four hundred gigatonnes, and a populist backlash that wins elections.
gigatonnegame.com
September 7, 2026 at 9:20 AM
Gigatonne · Day 45
Leave today's century alone and warming peaks at +2.52°C, taking 4 of 7 Earth-system thresholds with it, and the public removes you in 2072.
Everyone plays the same century today. Do better than nothing.
Leave today's century alone and warming peaks at +2.52°C, taking 4 of 7 Earth-system thresholds with it, and the public removes you in 2072.
Everyone plays the same century today. Do better than nothing.
Gigatonne · Day 44
Today's run, played by nobody: +2.92°C at the peak, 5 of 7 thresholds crossed, mandate over in 2086.
That is the floor. Everyone gets this same century today — see how far above it you land.
Today's run, played by nobody: +2.92°C at the peak, 5 of 7 thresholds crossed, mandate over in 2086.
That is the floor. Everyone gets this same century today — see how far above it you land.
Gigatonne — a climate strategy game
Run the planet from 2026 to 2100. Thirty-eight policy instruments, four hundred gigatonnes, and a populist backlash that wins elections.
gigatonnegame.com
September 6, 2026 at 9:20 AM
Gigatonne · Day 44
Today's run, played by nobody: +2.92°C at the peak, 5 of 7 thresholds crossed, mandate over in 2086.
That is the floor. Everyone gets this same century today — see how far above it you land.
Today's run, played by nobody: +2.92°C at the peak, 5 of 7 thresholds crossed, mandate over in 2086.
That is the floor. Everyone gets this same century today — see how far above it you land.
Gigatonne · Day 43
Do nothing today and it runs as far as 2058 — West Antarctic ice sheet, gone. You are out of office by 2063, at +2.25°C.
400 gigatonnes, 38 instruments, 75 years. Same run for everyone today.
Do nothing today and it runs as far as 2058 — West Antarctic ice sheet, gone. You are out of office by 2063, at +2.25°C.
400 gigatonnes, 38 instruments, 75 years. Same run for everyone today.
Gigatonne — a climate strategy game
Run the planet from 2026 to 2100. Thirty-eight policy instruments, four hundred gigatonnes, and a populist backlash that wins elections.
gigatonnegame.com
September 5, 2026 at 9:20 AM
Gigatonne · Day 43
Do nothing today and it runs as far as 2058 — West Antarctic ice sheet, gone. You are out of office by 2063, at +2.25°C.
400 gigatonnes, 38 instruments, 75 years. Same run for everyone today.
Do nothing today and it runs as far as 2058 — West Antarctic ice sheet, gone. You are out of office by 2063, at +2.25°C.
400 gigatonnes, 38 instruments, 75 years. Same run for everyone today.
Gigatonne · Day 42
Leave today's century alone and warming peaks at +2.54°C, taking 4 of 7 Earth-system thresholds with it, and the public removes you in 2073.
Everyone plays the same century today. Do better than nothing.
Leave today's century alone and warming peaks at +2.54°C, taking 4 of 7 Earth-system thresholds with it, and the public removes you in 2073.
Everyone plays the same century today. Do better than nothing.
Gigatonne — a climate strategy game
Run the planet from 2026 to 2100. Thirty-eight policy instruments, four hundred gigatonnes, and a populist backlash that wins elections.
gigatonnegame.com
September 4, 2026 at 9:20 AM
Gigatonne · Day 42
Leave today's century alone and warming peaks at +2.54°C, taking 4 of 7 Earth-system thresholds with it, and the public removes you in 2073.
Everyone plays the same century today. Do better than nothing.
Leave today's century alone and warming peaks at +2.54°C, taking 4 of 7 Earth-system thresholds with it, and the public removes you in 2073.
Everyone plays the same century today. Do better than nothing.
Gigatonne · Day 41
Today's run, played by nobody: +2.28°C at the peak, 4 of 7 thresholds crossed, mandate over in 2064.
That is the floor. Everyone gets this same century today — see how far above it you land.
Today's run, played by nobody: +2.28°C at the peak, 4 of 7 thresholds crossed, mandate over in 2064.
That is the floor. Everyone gets this same century today — see how far above it you land.
Gigatonne — a climate strategy game
Run the planet from 2026 to 2100. Thirty-eight policy instruments, four hundred gigatonnes, and a populist backlash that wins elections.
gigatonnegame.com
September 3, 2026 at 9:20 AM
Gigatonne · Day 41
Today's run, played by nobody: +2.28°C at the peak, 4 of 7 thresholds crossed, mandate over in 2064.
That is the floor. Everyone gets this same century today — see how far above it you land.
Today's run, played by nobody: +2.28°C at the peak, 4 of 7 thresholds crossed, mandate over in 2064.
That is the floor. Everyone gets this same century today — see how far above it you land.
Gigatonne · Day 40
Do nothing today and it runs as far as 2079 — Amazon dieback, gone. You are out of office by 2079, at +2.72°C.
400 gigatonnes, 38 instruments, 75 years. Same run for everyone today.
Do nothing today and it runs as far as 2079 — Amazon dieback, gone. You are out of office by 2079, at +2.72°C.
400 gigatonnes, 38 instruments, 75 years. Same run for everyone today.
Gigatonne — a climate strategy game
Run the planet from 2026 to 2100. Thirty-eight policy instruments, four hundred gigatonnes, and a populist backlash that wins elections.
gigatonnegame.com
September 2, 2026 at 9:20 AM
Gigatonne · Day 40
Do nothing today and it runs as far as 2079 — Amazon dieback, gone. You are out of office by 2079, at +2.72°C.
400 gigatonnes, 38 instruments, 75 years. Same run for everyone today.
Do nothing today and it runs as far as 2079 — Amazon dieback, gone. You are out of office by 2079, at +2.72°C.
400 gigatonnes, 38 instruments, 75 years. Same run for everyone today.
Gigatonne · Day 39
Leave today's century alone and warming peaks at +2.23°C, taking 4 of 7 Earth-system thresholds with it, and the public removes you in 2062.
Everyone plays the same century today. Do better than nothing.
Leave today's century alone and warming peaks at +2.23°C, taking 4 of 7 Earth-system thresholds with it, and the public removes you in 2062.
Everyone plays the same century today. Do better than nothing.
Gigatonne — a climate strategy game
Run the planet from 2026 to 2100. Thirty-eight policy instruments, four hundred gigatonnes, and a populist backlash that wins elections.
gigatonnegame.com
September 1, 2026 at 9:20 AM
Gigatonne · Day 39
Leave today's century alone and warming peaks at +2.23°C, taking 4 of 7 Earth-system thresholds with it, and the public removes you in 2062.
Everyone plays the same century today. Do better than nothing.
Leave today's century alone and warming peaks at +2.23°C, taking 4 of 7 Earth-system thresholds with it, and the public removes you in 2062.
Everyone plays the same century today. Do better than nothing.
Gigatonne · Day 38
Today's run, played by nobody: +2.72°C at the peak, 5 of 7 thresholds crossed, mandate over in 2079.
That is the floor. Everyone gets this same century today — see how far above it you land.
Today's run, played by nobody: +2.72°C at the peak, 5 of 7 thresholds crossed, mandate over in 2079.
That is the floor. Everyone gets this same century today — see how far above it you land.
Gigatonne — a climate strategy game
Run the planet from 2026 to 2100. Thirty-eight policy instruments, four hundred gigatonnes, and a populist backlash that wins elections.
gigatonnegame.com
August 31, 2026 at 9:20 AM
Gigatonne · Day 38
Today's run, played by nobody: +2.72°C at the peak, 5 of 7 thresholds crossed, mandate over in 2079.
That is the floor. Everyone gets this same century today — see how far above it you land.
Today's run, played by nobody: +2.72°C at the peak, 5 of 7 thresholds crossed, mandate over in 2079.
That is the floor. Everyone gets this same century today — see how far above it you land.
Gigatonne · Day 37
Do nothing today and it runs as far as 2058 — West Antarctic ice sheet, gone. You are out of office by 2078, at +2.69°C.
400 gigatonnes, 38 instruments, 75 years. Same run for everyone today.
Do nothing today and it runs as far as 2058 — West Antarctic ice sheet, gone. You are out of office by 2078, at +2.69°C.
400 gigatonnes, 38 instruments, 75 years. Same run for everyone today.
Gigatonne — a climate strategy game
Run the planet from 2026 to 2100. Thirty-eight policy instruments, four hundred gigatonnes, and a populist backlash that wins elections.
gigatonnegame.com
August 30, 2026 at 9:20 AM
Gigatonne · Day 37
Do nothing today and it runs as far as 2058 — West Antarctic ice sheet, gone. You are out of office by 2078, at +2.69°C.
400 gigatonnes, 38 instruments, 75 years. Same run for everyone today.
Do nothing today and it runs as far as 2058 — West Antarctic ice sheet, gone. You are out of office by 2078, at +2.69°C.
400 gigatonnes, 38 instruments, 75 years. Same run for everyone today.
Gigatonne · Day 36
Leave today's century alone and warming peaks at +2.17°C, taking 4 of 7 Earth-system thresholds with it, and the public removes you in 2060.
Everyone plays the same century today. Do better than nothing.
Leave today's century alone and warming peaks at +2.17°C, taking 4 of 7 Earth-system thresholds with it, and the public removes you in 2060.
Everyone plays the same century today. Do better than nothing.
Gigatonne — a climate strategy game
Run the planet from 2026 to 2100. Thirty-eight policy instruments, four hundred gigatonnes, and a populist backlash that wins elections.
gigatonnegame.com
August 29, 2026 at 9:20 AM
Gigatonne · Day 36
Leave today's century alone and warming peaks at +2.17°C, taking 4 of 7 Earth-system thresholds with it, and the public removes you in 2060.
Everyone plays the same century today. Do better than nothing.
Leave today's century alone and warming peaks at +2.17°C, taking 4 of 7 Earth-system thresholds with it, and the public removes you in 2060.
Everyone plays the same century today. Do better than nothing.