Governments, investors and corporates from around the world will have to stump up an estimated $100tn in green investment in order to reach net-zero emissions by 2050, research from BNY Mellon Investment Management has found.

The eye-watering level of funding, which represents 15% of total global investment over the next 30 years or 3% of cumulative GDP, is necessary, the $1.8tn manager warned in a joint report with Fathom Consulting, as the global economy is significantly behind schedule when it comes to reaching the goals set by the Paris Climate Accord.