Making some flights travel 2,000ft higher could slash climate impact of contrails by 60 per cent 

Making just TWO PER CENT of flights travel 2,000ft higher or lower than normal cruising altitude could slash the climate impact of aeroplane contrails by almost 60 per cent Majority of troublesome plane-induced clouds are caused by just 2.2%of flights These are formed when contrails merge and spread into cirrus natural clouds  Making 1.7% of … Read more