It is refreshing to see some science being applied to the issue as opposed to believing that school children egged on by pushy parents are the world experts
Aviation is 4% of UK CO2 production, and 2% globally. Both aviation and shipping have applied science to reduce pollution per unit cargo mile, but volumes have increased. Banning transportation will not solve anything.
The biggest issues are:
The big polluters. China produces 100 times the CO2 that the UK does and has increased by 17% ie one other country has increased CO2 production by 17 times the total UK CO2.
Developing countries particularly Poland and Indonesia who are churning out coal, building coal fired power stations and refuse to come to the table
Corruption, which has led to deforestation especially in South America and mass poverty in sub saharan Africa. The latter perpetuates wood burning for fuel and prevents eg hydroelectric development in the DRC
The west IMHO needs to address these ongoing issues and promote technology such as carbon capture to sell / give to to developing countries.