Project Earth is a 2008 reality TV series, hosted by Kevin O'Leary, Jennifer L. Languell, and Mocean Melvin, on the Discovery Channel in which several groups of scientists experiment with radical ideas to slow and/or stop global warming using geoengineering methods.
Led by scientist Mark Hodges, they attempt to reforest areas of bare Earth from helicopters using canisters holding a tree seedling.
Their goal was to make clouds more reflective to bounce more of the Sun's heat generating rays back into space as a stop-gap against global warming.
Using a fleet of 1500 cloud enhancing ships employing the recently discovered technologies would reduce that average global temperature change to only 1 degree Celsius by the end of the 21st century.
The estimated cost of the fleet of remote-operated cloud enhancing vessels would was valued at $5.8 billion US, a fraction of the $44 trillion US world economy that would be irreparably damaged if climate change were to continue unchecked.