Real-World Scenarios

The "Wrong Altitude" Problem

We're already cooling Earth with sulfur dioxide - just at the wrong altitude. Tropospheric SO2 causes air pollution and health problems while providing modest cooling. The same SO2 in the stratosphere would be 25 times more effective at cooling with zero ground-level pollution. These scenarios explore real-world examples of this paradox.

IMO 2020: The Shipping Emissions Paradox

When cleaning up ship pollution revealed hidden warming

What Happened

2020 Regulations: International Maritime Organization required cleaner ship fuel

SO2 Reduction: 8.5 million tons/year eliminated

Health Benefit: Less acid rain, cleaner air

Climate Cost: ~0.07°C additional warming

NASA satellites observed the change in Earth's reflectivity

The Alternative

Move Smoke Up Scenario:

Instead of eliminating 8.5 Mt SO2, move it to the stratosphere

Efficiency Gain: 25x more cooling per ton

Net Result: Health benefits + 0.2°C cooling

Best of both worlds: clean air AND climate action

The Paradox: Eliminating SO2 pollution is good for health but bad for climate (in the short term). Moving it to the stratosphere instead solves both problems.