It's a 1M prize, not the money allocated to implementing whatever change is proposed. If Helsinki comes up with a plan, within a year, at the cost of 1M, to de

It's a 1M prize, not the money allocated to implementing whatever change is proposed. If Helsinki comes up with a plan, within a year, at the cost of 1M, to decarbonize their city's heating and then takes 5-10 years to implement the plan, they will be carbon neutral within 6-11 years. Pretty good, right? What's your plan?