Sustainable development always seems to come in shades of grey; excuses, obfuscation, conflicting demands, entrenched interests, and inertia can overshadow clarity on what needs to be done ‘on Monday morning’. But for some reason, like Rio de Janeiro’s iconic black slate and white marble sidewalks, sustainable development seemed to be a lot more black and white at last week’s big UN Conference on Sustainable Development.
Maybe it was the more than 20 hours that I spent stuck in traffic that helped bring clarity; or being one of the 50,000 visitors, each spending an average of $10,000 to travel, and emitting about 3.5 tonnes of CO2e (coincidentally what the global average annual per capita emissions needs to stay below, if we want to remain within a warming of 2° C). Flight delays getting there and back were more than 50 hours; leave alone the 24 hours in-the-plane. Was the Rio journey worth it?