Real-time climate future simulator using IPCC AR6 data. Adjust global action levers — watch Earth's CO₂ trajectory and tipping points respond instantly, 2025 to 2100.
850ppm CO₂ by 2100+426 ppm from today
Earth Health Index
+3.2°C
Critical warming — ecosystems collapsing
CO₂ concentration (ppm) — 2025–2100
BAU
Scenario
1.5°C limit
Scenarios:
Solar & Wind Adoption0%
% of global electricity from renewables by 2050. Currently ~30% globally.
0% fossil only100% full green
Global Reforestation0.0 Bn ha
Billion hectares restored by 2050. Total deforested land ≈ 5 Bn ha.
0 none4 Bn ha max
EV Transition Speed0%
% of new vehicles sold as electric by 2035. Transport = 16% of emissions.
0% all combustion100% all electric
Carbon Capture (CCS)0.0 Gt/yr
Gigatons removed per year by 2040. Current tech max ≈ 20 Gt/yr.
0 none20 Gt maximum
Climate Tipping Points
+1.5°C threshold
Coral Reef Collapse
Safe — reefs intact
+2.0°C threshold
Arctic Ice-Free Summer
Safe — ice stable
+2.5°C threshold
Amazon Dieback
Safe — forest stable
+3.0°C threshold
West Antarctic Sheet
Safe — sheet intact
Temp Rise 2100
+3.2°C
Catastrophic warming
Sea Level Rise
+62 cm
1B+ people at risk
Arctic Ice Left
12%
Ecosystem collapse risk
Species at Risk
48%
Of assessed species
2100 Forecast
On current trajectory, Earth warms 3.2°C — catastrophic and irreversible.
Move the levers above to explore how global choices reshape our future. Every percentage point matters.
The STEM Behind CarbonClock
Carbon Cycle Model
CO₂ accumulation: C(t) = C₀ + ∫(E−R)dt where E = emissions from fossil fuels + land use, R = removal via photosynthesis + CCS. Modelled on IPCC RCP 4.5 & 8.5 pathways.
Climate Sensitivity
Temp rise uses radiative forcing: ΔF = 5.35 × ln(C/C₀) then ΔT = λ × ΔF where λ ≈ 0.8°C per W/m². ECS range: 2.5–4°C per CO₂ doubling (IPCC AR6).
Tipping Point Science
Non-linear thresholds from IPCC AR6: coral bleaching at +1.5°C, Arctic summer ice-free at +2°C, Amazon dieback at +2.5°C, WAIS destabilisation at +3°C.