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    Thread: Catastrophic Failure of Earth Within the Lifetime of Someone Alive Today!?

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    1. #11
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      Quote Originally Posted by Voldmer
      This would be commendable, if CO2 was a problem. But the thing is, CO2 levels today are extremely low by Earths historical standards, and additionally - and this keeps being forgotten in the debate - CO2 is what plants are made of. The more CO2, the more plant life. And the more plant life, the more animal life. That used to be considered a good thing
      It would be great if contra arguments are based on some data.

      Here's a graph with historical levels of CO2 emissions and a few other quotes which show that plants and animals have been disappearing from our planet and not the other way around.



      Quote Originally Posted by WWF
      Forests cover 31% of the land area on our planet. They produce vital oxygen and provide homes for people and wildlife. Many of the world’s most threatened and endangered animals live in forests, and 1.6 billion people rely on benefits forests offer, including food, fresh water, clothing, traditional medicine and shelter.

      But forests around the world are under threat from deforestation, jeopardizing these benefits. Deforestation comes in many forms, including fires, clear-cutting for agriculture, ranching and development, unsustainable logging for timber, and degradation due to climate change. This impacts people’s livelihoods and threatens a wide range of plant and animal species. Some 46-58 thousand square miles of forest are lost each year—equivalent to 36 football fields every minute.

      Forests play a critical role in mitigating climate change because they act as a carbon sink—soaking up carbon dioxide that would otherwise be free in the atmosphere and contribute to ongoing changes in climate patterns. Deforestation undermines this important carbon sink function. It is estimated that 15% of all greenhouse gas emissions are the result of deforestation.


      Deforestation is a particular concern in tropical rainforests because these forests are home to much of the world’s biodiversity. For example, in the Amazon around 17% of the forest has been lost in the last 50 years, mostly due to forest conversion for cattle ranching. Deforestation in this region is particularly rampant near more populated areas, roads and rivers, but even remote areas have been encroached upon when valuable mahogany, gold and oil are discovered.
      The International Union for Conservation of Nature (IUCN) notes in a video that many species are threatened with extinction. In addition,

      At threat of extinction are
      1 out of 8 birds
      1 out of 4 mammals
      1 out of 4 conifers
      1 out of 3 amphibians
      6 out of 7 marine turtles
      75% of genetic diversity of agricultural crops has been lost
      75% of the world’s fisheries are fully or over exploited
      Up to 70% of the world’s known species risk extinction if the global temperatures rise by more than 3.5°C
      1/3rd of reef-building corals around the world are threatened with extinction
      Over 350 million people suffer from severe water scarcity

      Global issues website
      As explained in the UN’s 3rd Global Biodiversity Outlook, the rate of biodiversity loss has not been reduced because the 5 principle pressures on biodiversity are persistent, even intensifying:

      Habitat loss and degradation
      Climate change
      Excessive nutrient load and other forms of pollution
      Over-exploitation and unsustainable use
      Invasive alien species
      Most governments report to the UN Convention on Biological Diversity that these pressures are affecting biodiversity in their country (see p. 55 of the report).

      The International Union for the Conservation of Nature (IUCN) maintains the Red List to assess the conservation status of species, subspecies, varieties, and even selected subpopulations on a global scale.

      Extinction risks out pace any conservation successes. Amphibians are the most at risk, while corals have had a dramatic increase in risk of extinction in recent years.

      Global issues website
      The quote below isn't related to global warming per se, but rather human activity. I decided to put this here as well, since you have an avatar with a lion and may be interested to learn more about the fate of these big cats.

      Quote Originally Posted by National Geographic
      Lions are dying off rapidly across Africa. These cats once ranged across the continent and into Syria, Israel, Iraq, Pakistan, Iran, and even northwest India; 2,000 years ago more than a million lions roamed the Earth. Since the 1940s, when lions numbered an estimated 450,000, lion populations have blinked out across the continent. Now they may total as few as 20,000 animals. Scientists connect the drastic decreases in many cases to burgeoning human populations.
      Last edited by NyxCC; 12-09-2014 at 09:26 PM.
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