Welcome to the 82nd Daily Field Note! Here you find the top post of the day, one covering each scientific field that is included by Geopolis. Since these authors put a lot of effort in writing a good post they surely deserve the extra exposure.

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Science quote of the day:
"A nation that can't control its energy sources can't control its future." ~ Barack Obama,

Geography: The contribution of plant cultivation to climate change

Original post by @sci.anse

As you probably know, green house gas emissions lead to climate change, and human activities make up a great part of those emissions. But did you know that the agricultural sector as a whole is responsible for 14% of the total green house gas emissions? In the following article, I'll explain how cultivation contributes to these emissions.

There are several aspects of plant cultivation that induce the emission of GHG. First there's the energy used for the farm machinery and the agricultural inputs and the manufacturing after harvesting. Then there's the management of the agricultural land. At last the im...

Geology: Geology and Civilization Part 2: Not a Drop to Drink

Original post by @mountainwashere

While quite a few resources are essential for the maintenance of our civilization, water is unquestionably the most important. (While air is more essential, its entirely even and inexhaustible distribution across the world means it's somewhat less useful to consider it in the same way as other resources.) If you run out of water, your civilization dies. It's one of the few ironclad rules of history. And, delightfully enough, we're running out of water. Actually, it'd be more accurate to say that we're overstressing the planet's freshwater supplies with industrial, municipal, and agricultural demands. The shifting weather patterns resulting from climate change and widespread deforestation are just exacerbating the problem. If we don't do something quickly to change the way our civilization thinks about and consumes its water, we're going to reach a breaking point quickly. Let's zoom in from a global perspective to America in the 1960s...

Ecology: Green assets for a greener world - how it works with DAO IPCI

Original post by @dao-ipci

Blockchain may accelerate investment into low-carbon projects and mitigate climate change 140 mln people will have to by 2050 due to anthropogenic climate change: such grim figures are mentioned in a recent study by the World Bank. In 2017 the World Ocean has set a new temperature record, and the last three years meteorologists have called the warmest in the history of observations. So if we have to live and work in more secure and stable world, drastic measures need to be taken to reduce the carbon footprint of global industry and transport. Picture by The participants of the latest global hackathon HackforClimate, which was held on the margins of the COP23 Climate Conference, se...

History: The Mysterious Disappearance of the Anasazi

Original post by @rnunez09

The Mysterious Disappearance of the Anasazi At the beginning of the first millennium, first century after Christ , specifically in the period between the years 1 to 500, there was in the mountainous and semi-arid territories of southwestern North America a group of people dedicated to the art of weaving baskets, for this reason they were known as basket makers. The Amerindian civilization called the Anasazi come from these basket makers, Anasazi is a Navajo word meaning "ancient people" or "ancient enemies", however, this connotation is meaningless since the Navajos were never enemies of the Anasazi. The first settlements of the Anasa...

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