The problem with 'mega-COPs': Can a 50,000-person conference still tackle climate change? - Phys.org

The problem with 'mega-COPs': Can a 50,000-person conference still tackle climate change?  Phys.org

The problem with 'mega-COPs': Can a 50,000-person conference still tackle climate change? - Phys.org
The problem with 'mega-COPs': Can a 50,000-person conference still tackle climate change?  Phys.org