Scientists say that doubling pre-industrial carbon dioxide levels will likely cause global average surface temperature to rise between 1.5Â° and 4.5Â° Celsius (2.7Â° to 8.1Â° Fahrenheit) compared to pre-industrial temperatures.
Furthermore, they may experience withdrawal symptoms that can include headaches and irritability, perceived loss of performance both physically and mentally. People suffering with intolerance to caffeine have reported feelings of disorientation, loss of judgment, anxiety, dizziness, agitation and a hyper activeness.
When you deprive your body of the caffeine it has grown accustomed to, it struggles to cope with this sudden change. In the coping process, you end up with a pounding headache. Headaches, irritability, lethargy, nervousness, and mild depression are all fairly common withdrawal symptoms associated with caffeine intake.