Archive for the ‘Global warming’ Category

Simple proof that global warming is a fact

Vast majority of scientists believe global warming is a fact. Rare exceptions are some USA scientists but since we know USA refuse to sign Kyoto protocol, althrought they are accounted for 25 % of world CO2 emissons, their opinion could be biased.

Average global temperature is rising there is no doubt about that. You can see that in the next chart.

Big question is why. Changes in global temperature were there throughout entire human history. What is different in this warming episode ?

You can see that level of CO2 in atmosphere rose during industrial revolution. Today level of CO2 is biggest in last 30 million years. That’s right. Million years. CO2 is damaging Earth because of so called greenhouse effect. CO2 emissions from burning fossil fuels or from deforestation trap heat that would othervise escape from Earth. You are probably questioning yourself what has this to do with global warming. Answer is here :

You can see almost perfect correlation between CO2 levels and average global temperature. Now imagine current CO2 levels ( 380 ) in chart and you will have explanation for recent extreme weather recently on Earth. We humans broke trend which was millions years old and consequences are here. Some are :

-rising seas

-changes in rainfall patterns

-increased likelihood of extreme events ( floods, hurricanes, … )

-loss of plankton due to warming seas

-widespread vanishing of animal populations

-bleaching of coral reefs due to warming sea

-acidification due to carbonic acid formation

-melting of the ice caps