Tag Archives: extinction

Spermageddon: Sperm is declining around the world

Posted on January 16, 2025 by

The rate sperm concentration is falling globally from samples collected from 1972 to 2000 (orange) and since 2000 (red) Source: Davies 2022 Preface. I’ve been seeing this issue in science news for years now. Scientific data has accumulated long enough … Continue reading →

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Menhaden: the fish at the bottom of the ocean food web

Posted on August 2, 2024 by

Preface. Oil has allowed us to extract 90% of the fish in the ocean by being able to go to the ends of the earth using sonar and spotting planes to find the last schools. Menhaden have been overfished for … Continue reading →

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The nine boundaries we must not cross or we may go extinct

Posted on November 4, 2022 by

Preface. This post has excerpts from the famous paper by Rockström et al (2009) as well as a more recent proposal by Running (2012) on an easier measure of how close we’re coming to rendering the planet uninhabitable. The media … Continue reading →

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Freshwater fish under threat of extinction

Posted on December 20, 2021 by

Preface. A third of freshwater fish are under threat from pollution, over fishing, dams, non-native species, climate change, disruption of river ecology and more.  Alice Friedemann  www.energyskeptic.com  Author of Life After Fossil Fuels: A Reality Check on Alternative Energy; When … Continue reading →

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We’ve wiped out two-thirds of wildlife in just 50 years

Posted on April 11, 2021 by

Last updated 2022-4-28 Preface.  Human over-consumption is driving extinction far more than climate change. Humans  began reducing biodiversity 4 million years ago, when large carnivores in Africa began disappearing (Faurby, S., et al. 2020. Brain expansion in early hominins predicts … Continue reading →

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Scientists’ warning to humanity on insect extinctions

Posted on September 30, 2020 by

Preface. Below are excerpts from two articles on why the extinction of insects could lead to our own extinction, not to mention all the other species on earth. Though if peak oil did happen in 2018 (citations chapter 2 of … Continue reading →

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Were other humans the first victims of the 6th mass extinction?

Posted on May 4, 2020 by

Preface. This article makes a good case that we did indeed wipe out other hominids. “…Yet the extinction of Neanderthals, at least, took a long time—thousands of years. While Neanderthals lost the war, to hold on so long they must … Continue reading →

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One million plant & animal species at risk of extinction

Posted on August 31, 2019 by

As usual, no mention of birth control or carrying capacity. Related: 2019-9 Huge decline in songbirds linked to common insecticide (neo nicotinoids). National Geographic. Alice Friedemann   www.energyskeptic.com  author of “When Trucks Stop Running: Energy and the Future of Transportation”, 2015, … Continue reading →

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Why and how Jellyfish are taking over the world

Posted on March 19, 2019 by

Preface.  The more climate change kicks in, the more we over-fish, pollute, acidify and warm the ocean, create vast dead zones, and trawl ocean bottoms, the better the jellyfish do. It is quite possible that the ocean ecosystem will shift … Continue reading →

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Biodiversity loss has gone beyond the planetary boundaries

Posted on June 22, 2018 by

Source: Tanja Folnovic, June 23, 2015 “Loss of Biodiversity”. http://blog.agrivi.com/post/loss-of-biodiversity Preface. The survival of homo sapiens depends on the ecosystem that supports us, so a loss of biodiversity is a threat to our survival and ultimately can lead to extinction. … Continue reading →

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