Also there's the idea of planting forests to sequester carbon, but we would have to plant the entire land mass of earth every third year... so it can… - Bjarke Ingels

[T]he intermittence problem... 99% of the earth's populaton lives within this zone [10,000 km]. ...If each 24 hr zone could provide 1/6 of the power of the planet, the site that has light could... power the other side. ...With current high-voltage connections you lose 3% of the power per thousand km. This means that the maximum loss, you lose... 1/3 of the power if you're going all the way to the other side. ...You already have regional grids. ...[T]here's plans to connect ...northern Europe and north Africa and the Middle East. There's plans to connect the [US] east and the west coasts and Mexico. ...[Y]ou have all of these partial plans. ...[W]hat if you could ...create an entire worldwide grid. The sunny side could power the dark side, or the windy side could power the less windy side... This kind of grid could... unite us all energy-wise...

So what are our energy sources? We have 4... the sun, that provides photovoltaics, solar heating, fossil fuels, wind power is all... solar energy; Earth... thermal energy..; the moon, tidal turbine energy... because of gravity; and nuclear energy... So... all the different forms of energy are related... Gravity creates pressure, nuclear activity through fusion provides sunlight. Through sunlight is translating into chemical energy that can... be burned to provide heat, that with an engine can be translated into kinetic movement, that can then be turned into electricity... [O]ver the years we've been... mastering more... of these translations... [A]ny kind of energy source is translation... so a water mill or hydropower is gravity turned into kinetic movement and from there into electricity. Nuclear fission is nucler energy translated into heat and from there into mechanical and electrical. Batteries: from chemical to electrical... [I]f you look at the energy storage vs. batteries... It's not very efficient. 1/2 ton of batteries has the same stored energy as 5 kilos or 10 lbs. of hydrogen.

There's another aspect, which is the shine effect. So , the Anish Kapoor patented black, the least reflective material on earth, had a shine effect of zero, and perfect white, of one... [A]n ocean or a parking lot has almost no shine effect so it absorbs a lot of heat. So the more open ocean... the more parking lots, the more heat is absorbed, whereas fresh snow has a... good shine effect... [T]o give you an idea of how impactful this is, if earth was all ocean we would have an average temperature of 27°C. Today it's 15°C... If 1/3 of the planet was glacial, it would be frozen. So 1% of change in the shine effect of earth is the equivalent of doubling the amount of <chem>CO2</chem> in the atmosphere. So it's also an important factor that... now works against us.