Hi @kyriacos :) About climate change: Throughout the history of our planet, there have been major shifts in temperatures that caused ice ages and global warming, and those were all naturally made. The reason that the climate change (caused by humans) they're referring to is not happening is because of the result of their measurement of the CO2 levels caused by us, which is not sufficient to bring about some changes in temperature.
But this is a good article. Kudos to you :)