The first Earth Summit was held 20 years ago – greenhouse gas concentrations continue to spiral upwards – this week will see 50,000+ people converge on Rio de Janeiro for the UN Conference on Sustainable Development, aka RIO+20 Earth Summit.

Here at the interpretOr, we’ll be sharing Al Jazeera infographics on a daily basis in the run up to RIO+20:

(source U.N. & Al Jazeera 2012)