Hacker News Reader

1) No, -I- believe a solution still exists.

2) My comments about Australia addressed the generally fuzzy thinking on this topic.

3) Again, there is no reason to think that the outcome is definite at this point. Clearly, in the worst case, technology should provide a solution. If the gloomiest projections turn out to be incorrect, for which there is mounting evidence, no mitigation may be needed at all.

View on HN

You believe that a solution exists, although you also believe that there is no need for one, but if there was "technology" would be that solution. Is that about right?

I believe that a solution exists, if in fact CO2 induced global warming is sufficient to warrant it. The latest IPCC report has a range of possible warming which is innocuous at the low end. It's also not clear what the error bounds are on the published warming estimates.

I gave the concrete example of orbital sunshades, which are absolutely feasible given current engineering techniques. Another possible CO2 mitigation are iron-induced ocean algae blooms. Many other approaches have been suggested including nuclear powered CO2 sequestration in the Antarctic. I'm sure that many other innovative, technology based mitigations will be proposed over time.

I hope that clears things up for you.

Reply on news.ycombinator.com