evidence: There is overwhelming evidence that current climate change is significantly caused by human carbon emissions contrary to claim in Townhall [...] Misleading: The effects of these factors (the sun, volcanoes...) have all been quantified, and human-caused greenhouse gas emissions are clearly the dominant cause of current global warming. [...] Careful analysis that attempts to take into account all major factors and their evolution in time indicates that anthropogenic increases in greenhouse gasses account for more than 100% of the observed warming on the century timescale (requiring cancellation from cooling influences). See the summary graphic from Carbon Brief, below.