It is now a scientific certainty that the impact of contrails and contrail-induced cirrus clouds, despite their relatively short lifetime, have at least an equivalent impact on the climate as CO2 emissions, and potentially up to twice that. What can we do about it?

White cloud streaks high up in the sky are one of the ways you can tell a plane has been overhead. And although they can form striking patterns in the sky, these contrails and the cirrus clouds they induce, impact climate change, possibly greater than the effect from CO2 emissions.