Tag Archives: biodiversity

Solar PV requires too much land to replace fossils

Preface. This is a brief summary of the Capellan-Perez paper that calculates the land needed to use solar to replace electricity as well as the land needed if solar were to replace all of societies use of energy (i.e. transportation, … Continue reading

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75% of Earth’s Land Areas Are Degraded. Environmental damage threatens 3.2 billion people.

  Preface. Yikes, by 2050 95% of Earth’s land could be degraded and reduce or even end food production, forcing hundreds of millions to migrate. Whatever you’ve read in the past about the State of the World, it’s gotten even … Continue reading

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Biodiversity loss has gone beyond the planetary boundaries

Source: Tanja Folnovic, June 23, 2015 “Loss of Biodiversity”. http://blog.agrivi.com/post/loss-of-biodiversity [ 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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Human over-consumption causes far more biodiversity loss than climate change

2016-8-13. Climate change isn’t the biggest danger to Earth’s wildlife, our thirst for natural resources is even more damaging (2016-8-10 “Biodiversity: The ravages of guns, nets, and bulldozers” Nature) For better or worse, human society has developed into a force … Continue reading

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“World Scientists’ Warning to Humanity: A Second Notice”

Preface. I’m sure anyone reading this post knows it is too late to do anything but eat, drink, and be merry, for tomorrow …  Although this warning was widely published, it was left out of over half of the top … Continue reading

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Why vultures are so important — and dying off

University of Utah. May 5, 2016. Why vultures matter—and what we lose if they’re gone. Original paper: Evan R. Buechley et al, The avian scavenger crisis: Looming extinctions, trophic cascades, and loss of critical ecosystem functions, Biological Conservation (2016).Vultures in … Continue reading

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The global threat of invasive species to marine biodiversity

Molnar, J. L., et al. 2008. Assessing the global threat of invasive species to marine biodiversity. Frontiers in ecology and the environment #6 Although invasive species are widely recognized as a major threat to marine biodiversity, there has been no … Continue reading

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An invasive green monster that can double in 2 days and impossible to control threatens 20 states

    [ The 2011 House of Representatives hearing below is a discussion of how to control salvinia. We spend about $135 billion on invasive species a year – what will happen when the fossil energy to remove them is … Continue reading

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Biggest threat to biodiversity is not climate change: it’s agriculture, fishing, and hunting

[ This article makes the point that other factors are far more to blame for biodiversity loss than climage change. And with “peak everything“, especially peak oil, but also peak coal, and peak natural gas — greenhouse gas emissions will … Continue reading

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Humans driving species to extinction 1,000 times the natural rate

[ According to a paper published in Science the current rates of extinction are 1000 times the background rate. This estimate is higher than previous estimates is due to a more sophisticated analysis. Other extinction news: 2017-1-18 World’s primates facing … Continue reading

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