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Global Temperature and CO2 levels over 600 million years (Source: MacRae, 2008)

Global Temperature and CO2 levels over 600 million years (Source: MacRae, 2008)

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According to NASA and IPCC, Global temperature has increased by 1.4 oF since 1880, CO2 levels has reached 400.71 parts per billion, loss of world’s forest cover between the period 2000 and 2012 is 1.5 million square km, reduction of land ice 287 billion metric ton per year, sea level rise is 3.2 mm per year and loss of arctic ice cover at the rate...

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... million years ago earth's CO2 level was greater than 1000 ppm and the average global atmospheric temperature during the evaluation of mammals and dinosaurs was about22 o C whereas today's global average temperature is 15 o C (MacRae, 2008) see figure 1. Several parts of Arctic and Antarctica were ice free and flourished with ancient trees and animals. ...
Context 2
... compressed CO2 can be injected underground using pipe line, suitable geological formation for CO2 sequestration are depleted oil & gas fields, solid, porous rock such as sandstone, shale, dolomite, basalt, or deep coal seams and saline formations. More precisely one or more layers below cap rock could be the ideal place which prevents the upward migration of CO2 after being injected (see figure 10) (Adapted from 'EPA CCS,' 2015). ...

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... In the past, long time ago, the level of carbon dioxide (CO2) was higher than 1000 ppm and the concentration of it today is more than 400 ppm, which several centuries ago was around 300 ppm [1]. However, it is predicted that it will reach 1000 ppm at the end of the century [2]. ...
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