A blog from University of Borås

Wednesday, September 26, 2012

Do we have enough renewable energy?

It would be interesting to have a look on the energy. In each year, 5,4 x 10^24 Joul solar energy is delivered to atmosphere, where just 46% is entered to the atmosphere and the rest is reflected back to the sky. About half of this energy is used to run the hydrological cycles, while about 0.05% of this entering energy (1,26* 10^18 Jouls/year) is saved in photosynthesis. This number can be compared with total energy use by human activity which is just about 33% of the energy saved by photosynthesis.

The conclusion is that all the human activity use just 0.0078% of the energy delivered to the atmosphere. We have no crisis of renewable energy, but we have crisis in our knowledge that is not enough on how to use this energy!!!!

1 comment:

  1. This paragraph gives clear idea in support of the new users of blogging, that actually how to do running
    a blog.
    My weblog ; global warming