(ensia) “Why start in aviation? The aviation industry very well understands that Earth’s atmosphere is a reservoir that has a limited capacity to safely absorb emissions. Aviation also knows that there are no alternative technologies on the horizon that will allow people to fly without creating emissions. So for many decades into the future, the aviation industry will need a growing share of the remaining capacity to emit carbon dioxide, giving it a stronger interest than most sectors in quickly reducing emissions and reserving as much capacity as possible for the future. Aviation, with its hard-won expertise in risk management, understands that there is uncertainty about how much capacity Earth’s atmosphere has left to safely absorb emissions — tremendous uncertainty that creates tremendous risk.”