Over the last six annual campaigns, participants from 100 - plus countries have contributed almost 70,000 measurements, giving project organizers a detailed picture of light pollution globally. (scientificamerican.com)
Unfortunately, climate sensors are expensive, and more importantly, project organizers don't have an easy way to transfer data from those home sensors to an online database. (discovermagazine.com)
News of the plan broke after project organizers had dumped around 100 tonnes of iron sulfate into the open ocean. (scientificamerican.com)