Dagens nyheter's Debate Them. Rymdparasoller may be, but fossil fuel use

In the DN debate on 5/3, we are proposing a 'plan B', in order to reduce global warming, is being prepared. We provide a promising example of such a compound, to sun umbrellas to be sent into space. There are serious objections to such a plan, but these are not the ones who are brought to the fore by the ekonomiprofessorerna Blomqvist, Johansson and Kriström, in a response to the 9/3. They raise three arguments.

according to the professors, take the ”274 in the year, in round numbers,” to carry out the project, as they would only be able to fire up a rocket in a day. Of course, it is possible to send many more rockets per day, so that the project can be completed in the next decade or so.

as For the second, suppose that a parasol could be a 1 millimeter thick, and therefore very, very big when folded up. Needless to say, you can't use the material having a thickness in a lastbilspresenning. The materials of today's technology is being used for the solsegel of the Lightsail-2 is a few microns thick, several hundreds of times smaller than scientists assume.

third, they argue that it would be 'extremely difficult' from the climate point of view, is to use the rocket to send up the umbrellas. This, too, is clearly in the wrong. In order to send out up to 10 million tons, space is required is in the order of a few hundreds of millions of tons of fuel. For the present, is burned globally, about one hundred times the amount of fossil fuels each year. In addition, it needs rocket fuel, not to be a fossil. The us space shuttle, the Space Shuttle was used primarily of liquid oxygen and hydrogen as a fuel does not produce carbon dioxide when it is used.

The best solution is the global phasing out of the use of fossil fuels. As well as professors, we also believe that a global carbon tax is the best way to do this is, as we write in the first paragraph of the above article, but with a little bit of the second word (”an international agreement on a floor price on emissions”). However, we believe that we also need to develop a plan b, If necessary, a discussion of what we should be avoiding killgissningar.

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