Sustaining Future

Tuesday, November 15, 2011

Conversion of pool to green house (a mini farm)


Friday, November 11, 2011

Thorium Nuclear Reactor

I fundamentally object Uranium based nuclear reactors for the environment impact of their decay products and the potential for enriched uranium for nuclear bombs.

Scientists have long known that Thorium is a good substitute.

From wikipedia, Some benefits of thorium fuel when compared with uranium were summarized as follows:

* Weapons-grade fissionable material (233U) is harder to retrieve safely and clandestinely from a thorium reactor;
* Thorium produces 10 to 10,000 times less long-lived radioactive waste;
* Thorium comes out of the ground as a 100% pure, usable isotope, which does not require enrichment, whereas natural uranium contains only 0.7% fissionable U-235;
* Thorium cannot sustain a nuclear chain reaction without priming, so fission stops by default.

With Thorium, I may have to change my mind on nuclear reactor as an energy source for humanity.


Thursday, November 10, 2011

Time is running, fast...

If humanity is to keep the global rise of temperature to within 2 deg C, the atmospheric CO2 content needs to be kept at below 350 ppm. At this moment, it is at 390 ppm and still rising fast. Unless any new power plant using fossil fuel is stopped, the chances of humanity surviving this crisis is dangerously unacceptable.

Of course, we can only capture the current CO2 from the atmosphere using projects such as Greening the desert or Seawater farming (Eritrea). Unfortunately, due to political instability, Eritrea project has ended.

Is humanity really that dumb?


Thursday, November 03, 2011

Honest reporting

If we continue to see more honest reporting of the effect of climate change, humanity may survive the coming catastrophe by starting to reduce green house gases right now.


Tuesday, November 01, 2011

No such thing as waste