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Visar inlägg från december, 2018

Global Warming: Trying to Reduce Footprint

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For 2019, my New Year's resolution will be to monitor my personal CO2e emissions and meet the 2030 target from IPCC . To reach the 1.5 degree target, the global emissions must be 45% lower, compared with 2010. By 2050, the emissions must be net-zero. Average Footprint The numbers for the average footprint are a bit confusing and some clarification is needed. A person (in Sweden for this example) emitted almost 11 tonnes of CO2e  in 2010. Almost 4,5 tonnes are produced in  Sweden and more than six tonnes abroad. The abroad emissions include imports, such as Brazilian beef, American/Chinese Iphones and holiday travels abroad. Most of the emissions from a person is from his/her personal consumption (7 tonnes 2010), but a fraction is from hospitals, police, schools, care of children and elderly (4 tonnes). I'll use the Swedish web site klimatkontot to calculate my personal emissions. Step 1: Measure Current Footprint. The first step is to understand how much I emitte

Your Share of The World

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Looking at the world, there are huge areas of valuable land that can provide the human population with food and goods. But we are so many to share the resources (currently 7.5 billion persons). How much land is there per person, if the world would be divided evenly? If you would share a small island with nine other persons, it would be fairly easy to understand how big your share would be. 10% of a 20-hectare island is 2 hectares, 10% of 250 trees is 25 trees, and so on. We can both calculate our share and feel the size of it. For bigger islands and populations, however, it is much harder to estimate our share of the world an the resources. - How many hectares of rain forest would I have if it was to be distributed in a ”fair” manner? How much oil? Phosphor? Plains? Fresh water? Lithium for my next cell phone? Our world has a surfare area of 500 million square kilometers, of which some 150 millions sq km is land. Each of us would have slightly less than two hectares o