Observed arrival · 2026-08-27
Ship Tracks Tycoon Turns Shipping Pollution into a Climate Toy
An interactive simulation showing how sulfur-burning cargo ships brighten clouds, how IMO 2020 changed that effect, and what deliberate cloud-brightening might do.
Field notes
The page models a fleet of seven ships and three sea-salt sprayer boats, with controls for sulfur rules, pause state, playback speed, and reset. Its readouts separate shipping cloud forcing from a relative cloud-brightness index and track ocean temperature against a 2019 baseline. The explanatory layer names the Twomey effect, notes that cooling saturates as droplets accumulate, and links to 14 papers and explainers, including work from 2020, 2024, and 2025.
Observed signals
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Editorial observations of this landing page, not a rating.
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