How would you improve this article on how much global warming humans have caused?
wellisnt - I didn't spend much time on acidification because I was trying to stay on topic (I'd already spent more time than I wanted discussing how we know the CO2 increase is anthropogenic), but maybe I'll add a bit more on the chemistry.
Ottawa - natural oscillations like PDO and ENSO are not forcings, they're internal variability. Neither are sunspot variations - solar irradiance is, and yes, has been approximately zero over the past 60 years (that's actually a good comment - I edited to specify the timeframe in question). The volcanic forcing has been negative.
Apparently you didn't notice, but I was very explicit in stating that 1°C is an ultra-conservative value inconsistent with the body of climate science research.
And the article tells you nothing about future warming. For that you would need to refer to the Climate Sensitivity Wiki (cross-referenced in this wiki), which is compatible with a 5–7°C warming by 2100 in a business as usual scenario.