I'm surprised it's this little (half a kilo in an entire year). I'd be curious to know where it ranks, since the language is a little sensational and not especially accurate. For example, it would be true if on a global scale, it were the 6th leading contributor, but numbers 1-5 were each 10x as much.
https://www.firstsentier-mufg-sustainability.com/insight/sou...
Could someone in academia educate me on the need to patent inventions like this ? is it just part of the university funding machine ? or would the researchers be using this as a defensive measure ?