A Canadian businessman walked from London to Istanbul to redeem his climate guilt

The man who introduced Coca-Cola to the Soviet Union and brought Cirque du Soleil to Russia is now engaging in rather extreme climate activism after a wake-up call late in his career. 

Canadian entrepreneur Craig Cohon finished a 4,250-kilometre journey across Europe on Monday after walking for five months straight. He also drained his entire pension fund, which amounted to $1 million.

The reason: he wanted to remove his personal carbon footprint, which is equivalent to 8,147 tonnes of CO2 over his lifetime so far — an amount that is 28 times the global average.

Cohon calculated his carbon footprint — in other