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CO2 calculator

The climate crisis and what to do about it

Action needed

False and dubious solutions

Awareness raising

Civil disobedience

Reasons for optimism

Tecnicalities by sector

Standards of administration in a democracy

Performance assessments

Best practice examples




Climate change: the basics

The climate is changing

  • Temperatures have risen steadily since the late 1800s [1]
  • 2016 was the hottest year on record

  • Storms, droughts and wildfires have become more frequent and more severe

The changing climate is due to release of CO2 and other greenhouse gases by human activity

  • Atmospheric CO2 has increased by 40% since the late 1800s [2]
  • Methane and other greenhouse gases have also increased
  • The increased CO2 and other greenhouse gases trap more of the sun's energy and raise tempertures [3]

The science is beyond reasonable doubt

  • The great majority of the experts agree on the science [4]
  • All of the counter-arguments can be seen to be invalid when subjected to critical scrutiny [5]


[1] NASA global land-ocean temperature chart downloaded 2.5.2019 from

[2] D McCoy & B Hoskins (2014) The science of anthropogenic climate change: what every doctor should know British Medical Journal BMJ 2014;349:g5178

[3] The Royal Society (2010) Climate change: a summary of the science
or from here

[4] IPCC (Intergovernmental Panel on Climate Change)

[5] Global Warming & Climate Change Myths Skeptical Science website (viewed 12.3.2015)

First published: 2015
Last updated: 14 Jul 2019