When greenhouse gas is low or high, does the animal die in both conditions?
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Answer:
Even if global warming is limited to well below 2°C, around 25% of the upper layer of the world's permafrost will thaw by 2100. If greenhouse gas emissions continue to increase strongly, it is possible that around 70% of this upper permafrost could be lost.
The annual greenhouse gas bulletin from the WMO showed that in 2013 concentrations of CO2 in the atmosphere were 142% of what they were before the Industrial Revolution. Other potent greenhouse gases have also risen significantly, with concentrations of methane now 253% and nitrous oxide 121% of pre-industrial levels.
The increased greenhouse effect is causing changes in our planet that can affect our lives. The major Greenhouse Gas, carbon dioxide, emitted naturally and by the burning of fossil fuels, stays in the atmosphere a long time. Its warming effect occurs even when the sky is clear and dry.