I recently learned that open burning of plastic waste produces lots of soot that might have a non-negligible effect on capturing heat from sunlight. So there's some causality between plastic waste and global warming.
I'm running a bookmarking site with a specific set of features at kntm.org and am using it since 2014, please join!
I also use OneTab (or similar) to clear up open tabs. I use Pocket just for sending articles to my kobo reader and Instapaper for read-it-later. Also using Materialistic app to quickly save HN articles.
I think the basic functionality of bookmarking will never be obsolete.
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