I’m personally inclined to disagree with the conlusion of the author of the article.
Looking at the change in polar ice sheets, shrinking glaciers and the increase in extreme weather events, along with the fact that the vast majority of the scientific community validate anthropogenic climate change it just makes sense.
Carbon dioxide has been trapped in fossil fuels; extraordinarily large quantities of it. Oil, coal and natural gas are the carbon from a huge section of the animal and plant based life on earth that was wiped out during one of the most lush and populated times in the earths geological history.
Dumping all that carbon in the form of carbon dioxide back into the earth’s atmosphere over the period of just over 2 centuries, combined with a huge increase of desertification and forestry reduction over the last millennia [remember, trees suck up and stabilize carbon, and people have been removing them since the beginnings of mass agriculture, and those fossil fuel carbon sinks have been around a looooong time] is going to have an effect.
There has shown to be a lag [to the tune of decades, not years] between the increases in CO2 and temperature increases. This is even more concerning due to the predictions that we are only a few degrees off a temperature needed to melt the methane gas that is currently trapped; frozen into the permafrost.
Why is methane a problem? Because it is a much stronger ‘greenhouse gas’ than CO2 and there a millions of tonnes of it currently locked up in the frozen ground. If it melts and is released it will create a huge positive feedback loop that will vastly accelerate the global warming process.
Even if you still totally discount anthropogenic climate change, there is another concern that comes with the vast release of CO2; ocean acidification.
An increase in atmospheric CO2 levels leads to higher concentrations of dissolved CO2 in the oceans:essentially increasing it’s carbonic acid content and raising it’s PH.
This is an issue as it is increasingly stopping marine life (including the micro-organisms at the bottom of the food-chain) from being able to deposit calcium as shells. This is contributing to declining fish stocks and dieing coral reefs. People tend to underestimate just how much we directly or indirectly rely on products that come from the ocean . . .