The human race has just broken a new record in its great race to ecological collapse: CO2 in the atmosphere has just passed 415 parts per million - this is the first time in human history that this limit has been exceeded.
According to the sensors of the Mauna Loa Observatory, an Arctic ice measurement outpost of the US National Atmospheric and Oceanic Agency, carbon dioxide reached 415.26 parts per million.

The terrible milestone was re-launched on Twitter by climatologist Eric Hothaus:
While the difference in itself may seem insignificant (and it shouldn't), it is another sign that humanity is pushing the boundaries: just a week ago a report indicated how the extinction of 1 million species was directly caused by human activity.
The increase in the presence of carbon dioxide is a very important fact, due to the properties that this acid oxide has to retain heat: the entire ecosystem increases in temperature as the concentration of CO2 increases.
And that's not the only thing: floods and extreme weather phenomena such as cyclones and typhoons will also increase, fires will be even more frequent, and it is "only" 2 degrees higher (however this is the "least worst" scenario).