By Rupert Gregg
A recent study by Stephen Poore at Oxford making claims about land use and all that goes with it has had some publicity. Even an Oxford man can overdo things sometimes and here it is. Gosh those animals only provide 18 percent of calories and 37 percent of protein while taking up 83 percent of farmland and 60 percent agriculture’s greenhouse emissions. Something must be done, or not? Look around as you drive around through the vast tracts of land in the pastoral zones of Australia. Is it really a surprise that hundreds of thousands of hectares have grazing animals in numbers without a crop in sight? There are millions of hectares on the planet unsuitable for any agriculture but will support a well- managed livestock industry quite readily. Continue reading “Land, Animals and all that Gas”
Germany’s green transition in a blind alley
By Oddvar Lundseng, Hans Konrad Johnsen and Stein Storlie Bergsmark
More and more people are about to realize, that supplying the world with stable energy from sun and wind only, will be impossible. Germany took on the challenge to show the world how to build a society based on green energy. They have now hit the wall. Germany has not reduced CO2 emissions over the last 10 years despite huge investments in green energy production capacity.
Germany has installed solar and wind power to such an extent that they should be able to satisfy the power requirement on any day with sufficient sunshine and wind. However, since sun and wind are often lacking, they only manage to produce around 27 percent of the annual power needs. When solar and wind production are at their maximum, this often lead to overproduction and major problems in equalizing production and consumption. To keep the frequency of the electric power within tight limits around 50Hz, it is no longer possible to increase the amount of solar and wind production in Germany, without additional, costly measures. Continue reading “The Green Energy Trap – Lessons from Germany”