Global warming, heh

I am surprised. I am really surprised. Crowds of politicians, thousands of journalists, scientists and so on. And not even one sign of unity! Some of them believe in the threat of global warning urging their governments to decrease various emissions, others write tons of analysis proving that even if we have some warming we still live during quite cold (and even colder) period.
As for me I guess that the second position looks more truthful.
Let’s look at our planet and its history. Earth surface shows us the traces of numerous glacial periods when entire Europe was like tundra etc.
In this case modern climate is much warmer, yeah.
But let’s deep into records. The most obvious example here is Northern America and Greenland. What was the reasons of Vikings who called American land as Vinland (it’s somewhere near Labrador) and whose community had centuries of agriculture in Greenland? The reason is simple. Climate was warmer!
Which warming do they believe in when thus winter had shown snowfalls in Baghdad?
Moreover, humans are still nobody in face of actual global climate. Just a regional air and water movement – and Myanmar is dying under hurricane!
Very local earthquake near Bali and millions of people lost their houses.
Nooo…. All our factories and cars mean less than average volcanic eruption.
Yet we have only one tool of global importance. Nuclear power. This should frighten us and not old fridges!