Climate gains are ‘inconvenient truth’ — it’s not all bad news about the environment

As the COP26 summit meets over the next couple of weeks in Glasgow, we can all expect to be bombarded with disaster scenarios, replete with stories about our species’ imminent demise. Over the last couple of days, we have had Boris Johnson warning that it is “one minute to midnight” and Prince Charles claiming that this is “literally our last chance saloon”. And of course, Greta Thunberg has already made a few appearances of her own, accusing politicians of “pretending to take our future seriously” and saying that COP26 will “lead us nowhere”.

2013-11-06 One of the longest-running big picture debates is between optimists and pessimists  arguing the state of the world. Pessimists  have constantly painted a dystopian future from Malthus and Jevons to the 1972 book Limits to Growth. Optimists have cheerfully pointed to how everything is getting better. 

For this Earth Day it is especially important we focus on the world's top priorities. In September, all 193 governments will meet at the UN to set targets for the world for the next 15 years in what is explicitly labeled "Sustainable Development Goals." So, it is worth looking at what we should do first. At my think tank, the Copenhagen Consensus, we've asked 60 teams of top economists including several Nobel laureates to evaluate the economic, social and environmental costs and benefits of the targets, so we can pick the best ones. Here is what we should do in environment.