Global Warming - Why we need to act?

Does data like..

Increase of 0.14 degree Celcius in 1906-2005 100-year linear trend when compared to 1901-2000 100-year linear trend

Increase in average Artic temperature is twice the global average rate in the past 100 years

There is very high confidence that the globally averaged net effect of human activities since 1750
has been one of warming, with a radiative forcing of +1.6 [+0.6 to +2.4] W/m2

or graphs like


from environment assessment reports leave you overwhelmed with tons of data which makes little or no sense or jargon like radiative forcing, surface temperature of permafrost layer leave you completely confused as to whether you need to do something or not and you end up doing nothing.

So here is a "keep it simple stupid" argument as to why each of us need to act in our own capacity to at least slowdown the global warming and thus avert the impending doom we are slowly but surely heading towards..