First Issues in London for DIYcity to Focus On?

Hello DIY London!

I wanted to start a discussion about what would be the best topics for DIYcity to address in London initially.

What do you see as the most pressing issues facing the city right now?

Which of these issues could best be addressed with DIYcity approaches?

What would be the simplest and/or highest-impact action to take right off the bat?

Other thoughts/ideas? Please share.

There are no wrong answers here, just an open discussion to get things started.