The Economist has a good editorial
Seize the day
The fall in the price of oil and gas provides a once-in-a-generation opportunity to fix bad energy policies
Governments need to do two main things.
First, cut fuel subsidies. This is particularly important in the Majority world, as this favours the wealthy, who can afford to drive cars. Indonesia has just done this and used the saves to fund education and welfare.
Second, cut subsidies that encourage oil and gas exploration and production, rather than renewables.
There is also a 10 page special report
Let there be light
Thanks to better technology and improved efficiency, energy is becoming cleaner and more plentiful
The two most striking graphs are those below.