Pesticides and fertilisers have become the largest human source of sulphur in the environment
Daily Mail
Experts led from the University of Colorado have found that the increasing use of sulphur in farming is causing similar effects to the acid rain of the past.
https://www.dailymail.co.uk/sciencetech/article-8612383/Pesticides-fertilisers-largest-human-source-sulphur-environment.html?ns_mchannel=rss&ns_campaign=1490&ito=1490