Greenhouse gas emissions – Main sources | What\’s Your Impact [...]

This site obviously has an activist agenda, but the info on dynamics of climate change appears both clearly presented and comprehensive -if you trust the sources (not all very current, but at least well-footnoted). Helpful, how they single out water vapor as they primary fast FEEDBACK gas, while the 4 main greenhouse gases (contribution of each quantified) are identified as FORCING climate change. Good way to get readers thinking in terms of classical System Dynamics.

There are 2 ways that greenhouse gas emissions enters our atmosphere. One of them is through human activities. The main human sources of greenhouse gas emissions are: fossil fuel use, deforestation, intensive livestock farming, use of synthetic fertilizers and industrial processes. The other is through natural processes like animal and plant respiration.There are four main types of forcing greenhouse gases: carbon dioxide, methane, nitrous oxide and fluorinated gases. The main feedback greenhouse gas is water vapor.Greenhouse gas emissions trap heat in the Earth’s atmosphere, just as the glass of a greenhouse keeps warm air inside. Human activity increases the amount of greenhouse gas emissions entering in the atmosphere, contributing to a warming of the Earth’s surface. (Source)

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DEHESAS Y MONTADOS IBERICOS [...]

La dehesa (montado en Portugal) es un sistema agrosilvopastoral único, donde se genera actividades económicas y sociales en un perfecto equilibrio con el medio ambiente donde se desarrollan.

Es el producto de la acción del hombre sobre el bosque mediterráneo en zonas donde, por lo general, no son adecuadas otras actividades agrícolas, dando como resultado un sistema basado en un arbolado disperso que permite la formación de pastos.

Su estado actual es el resultado de la acción combinada de factores culturales, ecológicos, económicos, geográficos, históricos, paisajísticos y sociales.[1]

(Source)

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Tree Planting and Water Harvesting | The Green Belt Movement [...]

If you destroy the forest then the river will stop flowing, the rains will become irregular, the crops will fail and you will die of hunger and starvation.” Professor Wangari MaathaiThe Green Belt Movement uses a watershed-based approach to restore degraded watersheds of key water catchments so as to improve their functions and improve the livelihood of the local communities. (Source)

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My Plan, and Why You Don’t Want it – Quinn Norton – Medium [...]

In my vision of the future we would have to come together to face our debts, and not let our leaders manage them for us. I don’t mean monetary debts, which are largely ridiculous. I mean our bio-diversity debts, our nitrogen and phosphorus debts, our carbon debts, our energy debts. These debts are not just environmental issues, they also describe economic injustice, and access to resources for 4–5 billion people on this planet, and growing. What do you think prosperity is made of? Mostly, as it turns out, nitrogen, carbon, energy, and the space that was once diverse ecosystems. (Source)

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