- Watched "cowspiracy" ~2 yrs ago and other documentaries (like "seaspiracy" ~ 1 week ago) to question my food consumption. 4h invest

- basically turned vegetarian (like 99,99%) in 2014

- joined avaaz.org to sign petitions. 30 mins per month invest

- I'm a minimalist and avoid buying new stuff, avoid buying furniture altogether

- Use the bike to get to work

- did a sticker campaign in 2014 to raise awareness about our lives and the planet (I firmly believe that awareness is a key factor to sustainability)