Saul Griffith
how much power do i use?
an average american has as 12,000 watt lifestyle
he has looked at his entire life at WATTS.
we need a NOBEL prize for energy auditing.
humanity uses 18 TW of energy.
the influence of carbonic acid in the air pon the temperature of the ground. the first article in april on climate in 1896……get it.
oceans have 40 000 GtC.
busniess as usual – 800
stern report – 550
he wants 450
we are at 385
jim hansen 350
pre industrial 290 ppm
the best story line seems so show that if the entire world ‘goes california’ we still have a 2 degree increase in temperature. this will mean that we will see entire cities and countries lost to sea level change. 20-50% of species will be lost…… this is the BEST case!
so. how do we stabilize at 450ppm? we can only put 2GT into the atmosphere per annum. this really means only 2-3 TW from carbon fuels which is much less than the 16 we use now. THUS we need 12.5 TW from a new energy source. the only four available are solar, gravity, heat, nuclear.
renewables are really a power density problem.
2033 power mix…..carbon free
nuclear 3 – i 3 GW nuclear plant every week for the next 25 years
geothermal 2 – 3 100 MW steam turbines every day for the next 25
wid 2
solar 2 – 100 m2 of solar cells at 15% efficiency for the next 25 years
biofules 0.5 – i olympic size pool of algae every day for the next 25 years
a realisic limit case for solar is….
eat less
eat more healthily
exercise more
spend more time with family
live closer together
less time commuting
less business travel
have higher quality better designe products
two equations govern our lives -
power equation. the factors of the equation tell us that we MUST be going slower. personal transportation meeds to look like an electric scooter, not an SUV. we need factors of 10 improvemnts, not factors of two
heat equation is the other one.
Probably the BEST presentation i have seen on climate change and energy EVER.
