lo_pak

回復 36# peter236

At the meanwhile I would rather they use more "nuclear" because of the scale...
Those hydro, wind, solar cannot "satisfy" the consumption gap in a short run...

lo_pak

回復 34# peter236

What are the causes to dessertification?

1) Climate change - can't fix;
2) Water resources misuse - mostly due to human activities, people are "squeezing" the natural resource out from the environment without repaying...

lo_pak

回復 39# peter236

In power generation (in general), 2 important components are confining:

1) Heat source;
2) Water

When you look at the map of China, changing the method of power generation (substituting fossil fuels with hydro, wind, nuclear...) in the eastern part is comparatively easier (just $$). In the western part it's difficult. An easier way to do is to produce the power in the east and run a long way via high voltage powerline to power the west, but again, it's $$$$...

When more people are dying because of the pollution, people will know the $$$ they save from power generation actually pay off in a different form...

lo_pak

回復 53# peter236

Natural gas is good. However, it requires a lot of initial investment on building "HUGH" facilities to store them and they can't be big... Supplying by the Russia is a bit of a headache, you can tell by the Europe experience...

BTW, if the technology of utlitizing those "flammable ice" is feasible, that would be another great source. Again, disputes along the offshore area with surrounding nations are problematic...

lo_pak

回復 58# peter236

Shanghai track length = 420km
NYC track length = 1,355km

lo_pak

回復 45# peter236

The map shown is the distribution of "particulate matter" with length +/- 2.5um, the so-called PM2.5 - the smallest particle size that would trap in our breathing system.

There are different sizes of sand in the desert, probably the one in Sahara and Saudi Arabia are finer than those in Australia...