A new report from Hawaii says scientists at Mauna Loa, for the first time in human history, have measured atmospheric carbon dioxide at 400 ppm.
In 1958, when the observatory was established, CO2 was measured at 320 ppm.
In 1800, at the beginning of the industrial revolution which spawned manmade global warming and global climate change, the worldwide CO2 level was about 280 ppm.
Folks, we're cooking the planet. The entirety of believable science says so.
It's the only planet our grandchildren are going to have to live on.
We need to do more, now, to mediate the worsening effects of global climate change.