Only 4% of the conferences we assessed offered carbon-offset options for participants, and only 9% advertised any action that reduced the meeting’s environmental impact. You can find out more reading our correspondence article:
Holden, M., Butt, N., Chauvenet, A., Plein, M., Stringer, M. & Chadès, I. (2017). Academic conferences urgently need environmental policies. Nature Ecology & Evolution, 1. doi:10.1038/s41559-017-0296-2 ( http://rdcu.be/uOoO ).
Send me an email if you would like a copy.