Shell made a film about climate change in 1991
Definitely worth the watch.<p>here are my cliff notes:<p>> human energy consumption, by means of burning fossil fuels, is the reason for green house gases, that in turn trap more heat, then our environment can sustain.<p>> technology to reduce CO2 emission, assuming the same level of electricity consumption -- is far from being available.
They had talked about Nuclear, sun, geo, nuclear fusion.<p>>more efficient means to convert to electricity:<p>>35% of coal energy is transformed to electricity<p>> incandescent  light bulb converts only 5% to light
If larger city (NY, Moscow, Bombay etc) switch to better light bulb, 1 million ton of C02 emissions every year, each.<p>> simply changing from coal to gas cuts carbon emission by 40%<p>>half of worlds oil is used by 500mln road vehicles. 400 mln of those are private cars. each producing 4 times its weight in CO2, each year.  Internal com engine is only 20% efficient.  Cars can improve by 3 times (not clear, if they assumed electric only or not).<p>> when gas is not available option, coal can be gasified<p>> 
>Taxation can work both ways, already there is a talk of carbon tax. But how to achieve compliance across national borders.<p>>Global warming calls for global response.  but world is not a common market.
Examples they used is Easter Europe, other developing regions.<p>>How could this countries advance, but leap-frog energy developments?<p>Future must be different, developing countries cannot take the same path as the developed countries in the past.