22 Matching Annotations
  1. Jul 2022
    1. So the first transition, they say, was about 10,500 years ago with the beginning of agriculture. Some have said farming was our biggest mistake: it supported more of us, but at the cost of more disease, poor nutrition, grinding labour, and hierarchical societies that turned into warring empires. But we gained more energy from domesticating animals, and more information by the invention of writing. “Serendipitously,” the authors write, “farming created environmental conditions across our home planet that were unusually stable. This gave time for large-scale civilizations to develop.” That is, humans launched global warming not in the 1800s but with the first agriculture. By burning off forests to make farmland, we began to pump carbon dioxide into the atmosphere — coincidentally, just as the earth was moving on schedule back into another glacial period. Over the next few thousand years farming spread across Asia, Africa, Europe, and much of the Americas, keeping the planet just a little too warm for a return of the glaciers.

      First transition The authors make an extraordinary claim that the Holocene not only coincided with the beginnings of agriculture, but that humans, in large scale burning of forests to create agricultural fields released sufficient quantities of CO2 emissions from the burning to prevent the coming of the next ice age!

      Do a literature review to see if there is evidence for such an extraordinary claim.

  2. Jun 2022
    1. dire warning

      Really? What's the dire warning? Whatever creatures dominated at the time of the warm period flourished and expanded their ranges. Even now, humanity flourishes most in warmer places (http://www.luminocity3d.org/WorldPopDen/#3/12.00/10.00).

      Contrary to the climate alarmist suggestion that warming should be stopped, the study shows that a warmer Earth has been the norm - and when it was, life of all kinds flourished.

      That's the opposite of a "dire warning" to any sensible person.

      But if people wake up to the scientific reality, why would anyone want to pay scientists to come up with ways to keep us trapped in the ice age we've been in for most of human history?

  3. Sep 2021
    1. Since about 70% of water delivered from the Colorado River goes to growing crops, not to people in cities, the next step will likely be to demand large-scale reductions for farmers and ranchers across millions of acres of land, forcing wrenching choices about which crops to grow and for whom — an omen that many of America’s food-generating regions might ultimately have to shift someplace else as the climate warms.

      Deep Concept: The US Government, in the 1960's/70's provided a crystal ball glimpse into the future by defining climate change (man-made global warming) as a national security concern. Various reports warned of "exponential" growth (population) and related man-made factors (technology etc.) that would contribute to climate change and specifically discussed the possibility of irreconcilable damage to "finite" natural resources.

  4. Feb 2021
  5. Sep 2020
  6. Aug 2020
  7. Jul 2020
  8. Jan 2020
    1. Or global warming. I can’t see or touch it. What I can see and touch are these raindrops, this snow, that sunburn patch on the back of my neck. I can touch the weather. But I can’t touch climate. So someone can declare: “See! It snowed in Boise, Idaho, this week. That means there’s no global warming!” We can’t directly see global warming, because it’s not only really widespread and really really long-lasting (100,000 years); it’s also super high-dimensional. It’s not just 3-D. It’s an incredibly complex entity that you have to map in what they call a high-dimensional- phase space: a space that plots all the states of a system. In so doing, we are only following the strictures of modern science, laid down by David Hume and underwritten by Immanuel Kant. Science can’t directly point to causes and effects: That would be metaphysical, equivalent to religious dogma. It can only see correlations in data. This is because, argues Kant, there is a gap between what a thing is and how it appears (its “phenomena”) that can’t be reduced, no matter how hard we try. We can’t locate this gap anywhere on or inside a thing. It’s a transcendental gap. Hyperobjects force us to confront this truth of modern science and philosophy.

      A short, and very cogent argument here.

    1. The strategy would focus on vigorous range management, soil and water conservation including tree-planting, limiting over-grazing and preventing deforestation. Improving water availability would also require additional construction of surface dams during rainy seasons and deep wells.

      solutions

    2. The primary causes of desertification in Somaliland include, among other things, deforestation, over-grazing and mismanagement of land and the environment as well as soil erosion, all of which have damaging effects on farmland and rangeland. Drought, considered as a cyclical phenomenon generally refers to rains failing for a long period of time which accelerates desertification and drastic reduction of water. Drought, is more compounded nowadays, by global climate change.

      a more complex explanation of desertification in Somalia

    1. Rehabilitation and restoration approaches can help restore ecosystem services that have been lost due to desertification.

      desertification - prevention and restoration

    1. (Through interpreter) Definitely there is a change. We used to count on the rainy season and the dry seasons. Now it's not normal. It has changed. We hear on the radios that in the West and in industrialized countries, there is a lot of pollution in the atmosphere.

      relationship between drought and global warming - Somali perspective

  9. Sep 2019
    1. Table 2.2:

      IPCC Special Report on Global Warming of 1.5 °C - Table 2.2: The assessed remaining carbon budget and its uncertainties

  10. Mar 2019
    1. According to the analysis, urban areas were found to be relatively cooler than the surrounding non-urban areas during heat waves. At 44.5°C, the non-urban areas were warmer than urban areas (43.7°C). However, during the night, all urban areas were hotter than the surrounding non-urban areas.

      Urban heat island effect

    1. Most strikers want their governments to aggressively cut their greenhouse gas emissions. Some youngsters are even demanding a lower voting age, so they can have a bigger say in political process. They want a safe future, powered by the wind and the sun, not dirty and dangerous coal and gas. For instance in Australia, students are urging politicians to move beyond fossil fuel projects, with the hashtag #StopAdani trending. The fear is that the coal mine project will damage water and the reefs.

      More power to you!

  11. Jan 2019
    1. . The power of glaciation and climate in shaping movement, lifestyle,and innovation cannot be underestimated

      really off topic but makes me think of global warming and how our present actions can have huge, tangible consequences

  12. Mar 2018
    1. As global temperatures rise, warmer oceans are expected to fuel stronger hurricanes, with disastrous consequences.

      Here is a sample annotation.

  13. Oct 2017
    1. ‘Truly it would seem as if “Man strews the earth with ruin.”4 But this conclusion is too flattering to human vanity. Man's most permanent memorial is a rubbish-heap, and even that is doomed to be obliterated’ (Sherlock, 1922, p. 343

      CO2 atmospheric concentration used as simple indicator for many years to track great acceleration / progression in Anthropocence, this now joined by long list of other indicators, escalating at an alarming rate, population, water use/ shortage, paper consumption, global warming, increase in number and ferocity of storms .......

    2. In 1873, the Italian geologist and priest Antonio Stoppani suggested that our technologies, infrastructures, and patterns of land use had created fundamental changes in Earth’s systems, propelling us into what he called an ‘anthropozoic era’

      Note : Read over Article again by Will Steffen, Paull J Crutzen & John R McNeill. [] (https://www.pik-potsdam.de/news/public-events/archiv/alter-net/former-ss/2007/05-09.2007/steffen/literature/ambi-36-08-06_614_621.pdf)

      Explore development of Anthropocence. How do we track progression of Anthropocene? CO2 Emissions??

  14. Aug 2015
    1. The right-wing base has a coherent position on climate change: It's a hoax, so we shouldn't do anything about it. The left-wing base has a coherent position: It's happening, so we should do something about it. The "centrist" position, shared by conservative Democrats and the few remaining moderate Republicans, is that it's happening but we shouldn't do anything about it. That's not centrist in any meaningful ideological sense; instead, like most areas of overlap between the parties, it is corporatist.

      The worst possible outcome.