enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Carboniferous rainforest collapse - Wikipedia

    en.wikipedia.org/wiki/Carboniferous_rainforest...

    The Carboniferous rainforest collapse (CRC) was a minor extinction event that occurred around 305 million years ago in the Carboniferous period. [1] The event occurred at the end of the Moscovian and continued into the early Kasimovian stages of the Pennsylvanian (Upper Carboniferous). It altered the vast coal forests that covered the ...

  3. Ecosystem collapse - Wikipedia

    en.wikipedia.org/wiki/Ecosystem_collapse

    Ecosystem collapse has been defined as a "transformation of identity, loss of defining features, and replacement by a novel ecosystem", and involves the loss of "defining biotic or abiotic features", including the ability to sustain the species which used to be associated with that ecosystem. [1] According to another definition, it is "a change ...

  4. Kasimovian - Wikipedia

    en.wikipedia.org/wiki/Kasimovian

    The Kasimovian is a geochronologic age or chronostratigraphic stage in the ICS geologic timescale. It is the third stage in the Pennsylvanian (late Carboniferous ), lasting from 307 to 303.7 Ma. [ 3] The Kasimovian Stage follows the Moscovian and is followed by the Gzhelian . The Kasimovian saw an extinction event which occurred around 305 mya ...

  5. The water cycle that sustains the Amazon faces collapse ...

    www.aol.com/news/amazon-crucial-water-cycle...

    The study suggests that 10% to 47% of the landscape is at risk of transitioning away from rainforest by 2050 if warming and rates of deforestation aren’t dramatically curbed.

  6. Coal forest - Wikipedia

    en.wikipedia.org/wiki/Coal_forest

    The Carboniferous rainforest collapse was caused by a cooler drier climate that initially fragmented, then collapsed the rainforest ecosystem. [2] During most of the rest of Carboniferous times, the coal forests were mainly restricted to refugia in North America (such as the Appalachian and Illinois coal basins) and central Europe.

  7. Classic Maya collapse - Wikipedia

    en.wikipedia.org/wiki/Classic_Maya_collapse

    Classic Maya collapse. In archaeology, the classic Maya collapse was the destabilization of Classic Maya civilization and the violent collapse and abandonment of many southern lowlands city-states between the 7th and 9th centuries CE. Not all Mayan city-states collapsed, but there was a period of instability for the cities that survived.

  8. Climate tipping points may have been reached already ... - AOL

    www.aol.com/news/climate-tipping-points-may...

    Here we will focus on what he deems the three most critical tipping points: the Amazon rainforest, ... And if the whole West Antarctic ice sheet collapsed, 10 feet of sea level rise would follow.

  9. Carboniferous - Wikipedia

    en.wikipedia.org/wiki/Carboniferous

    On land this event is referred to as the Carboniferous rainforest collapse. [14] Vast tropical rainforests collapsed suddenly as the climate changed from hot and humid to cool and arid. This was likely caused by intense glaciation and a drop in sea levels. [68]