And as far as we know, it has been forming in the earth’s upper atmosphere since the atmosphere was made back on Day Two of Creation Week (part of the expanse, or firmament, described in Genesis 1:6–8). Cosmic rays from outer space are continually bombarding the upper atmosphere of the earth, producing fast-moving neutrons (subatomic particles carrying no electric charge) (Figure 1a).1 These fast-moving neutrons collide with atoms of nitrogen-14, the most abundant element in the upper atmosphere, converting them into radiocarbon (carbon-14) atoms.
CARBON-14 IS CREATED (Figure 1a): When cosmic rays bombard the earth’s atmosphere, they produce neutrons.
Pre-industrial (recent history) levels are said to have been at around 280 parts per million.
The other very disturbing issue is that the figures below don't include other greenhouse gases such as methane, which are also on the rise.
According to researchers at the Scripps Institution of Oceanography, the CO2 value for September 2016 will definitely be above 400 ppm, and will likely be around 401 ppm.
Almost impossible," Ralph Keeling, director of the Scripps CO2 Program, writes in a blog post.Even if, by some miracle, we all stopped emitting carbon dioxide tomorrow, it would take decades to get us back below the 400 ppm threshold - and we all know that’s never going to happen."At best (in that scenario), one might expect a balance in the near term, and so CO2 levels probably wouldn't change much - but would start to fall off in a decade or so," Gavin Schmidt, NASA’s chief climate scientist, told Brian Kahn at Climate Central.I've seen this explained as the "earth breathing in and out".Most of the earth's land mass is located in the northern hemisphere, as is most of the earth's vegetation.