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Category Archives: Extinction
Without a Trace ‘The Sixth Extinction,’ by Elizabeth Kolbert
Review by Al Gore Feb 10, 2014. New York Times. Over the past decade, Elizabeth Kolbert has established herself as one of our very best science writers. She has developed a distinctive and eloquent voice of conscience on issues arising … Continue reading
Posted in Extinction, Extinction Books
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People are devouring the earth: 83% of land, 60% freshwater runoff, 40% of plants, 35% of productivity of oceanic shelf, 98% of land that can grow rice, wheat, corn
Hillary Mayell. October 25, 2002. Human “Footprint” Seen on 83 Percent of Earth’s Land. National Geographic News. There is little debate in scientific circles about the importance of human influence on ecosystems. According to scientists’ reports: Humans use 83% of … Continue reading
Posted in Extinction, Overpopulation, Population
Tagged extinction, overpopulation
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We’ve taken over too much of the planet for pasture and crops
In the article “Primeval planet: What if humans had never existed?” by Christopher Kemp in NewScientist, these charts of increasing intensity of pasture and crop land from 5000 BC (18,000,000 population) until 2000 (6,150,000,000 people) show that humans are laying … Continue reading
Posted in Extinction, Overpopulation
Tagged agriculture, aquifer depletion, biodiversity loss, crops, green house gas emissions, pasture, rangeland, topsoil erosion
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Phytoplankton have declined 40%: they provide food and oxygen for all creatures on Earth
This article from NewScientist discusses how phytoplankton are disappearing — and they provide half of the food animals both in the ocean and on land depend on, plus produce a great deal of the oxygen we breathe. Throw in overfishing, … Continue reading
Posted in Extinction, Fishery destruction, Global Warming, Mass Extinction, Oceans
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Why we might not go extinct from fossil fuel emissions
Peak Fossils means Peak Emissions and the lowest to medium IPCC projections at worst This is an overview, other posts in this category contain peer-reviewed papers that show why this is true. The heart of the problem is that the … Continue reading
Peak Coal already happened or likely soon, so worst IPCC scenarios may never happen
[ The good news is that The IPCC has greatly exaggerated the amount of coal reserves we actually have The scientists below find that the Intergovernmental Panel on Climate Change (IPCC) has greatly exaggerated coal reserves, so the IPCC scenario … Continue reading
Posted in But not from climate change: Peak Fossil Fuels, Climate Change, CO2 and Methane, Coal, Global Warming, Peak Coal, Planetary Boundaries, Runaway Greenhouse
Tagged peak coal
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20% of Invertebrate species threatened with extinction.
Brendan Borrell. Sep 3, 2012. One Fifth of Invertebrate Species at Risk of Extinction. Freshwater snails and reef-building corals are among the threatened groups. Nature & Scientific American. One in five of the world’s invertebrate species are threatened with extinction, … Continue reading
Posted in Biodiversity Loss, Extinction
Tagged extinct, extinction, invertebrate
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Methane’s potential for another major extinction event
June 22, 2016. As Alaska warms, methane emissions appear stable, study finds. phys.org. Excerpts: One reason no increase has been seen may be that “Bacteria that produce methane and bacteria that consume methane will both become more active as temperatures … Continue reading
Posted in Extinction, Runaway Greenhouse
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Biodiversity loss impact on ecosystem worse than climate change and pollution
David U. Hooper, et al. A global synthesis reveals biodiversity loss as a major driver of ecosystem change. Nature, 2012; DOI: 10.1038/nature11118 “This analysis establishes that reduced biodiversity affects ecosystems at levels comparable to those of global warming or air … Continue reading
Posted in Biodiversity Loss, Extinction
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Fungi destroy bees, bats, amphibians, trees, etc
Attack of the Killer Fungi: Rising Threat Worries Scientists Wynne Parry, LiveScience 11 April 2012 An unprecedented number of diseases caused by fungi have been causing some of the most severe die-offs and extinctions ever witnessed in wild species and … Continue reading
Posted in Biodiversity Loss, Extinction
Tagged biodiversity, disease, extinction, fungi
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