We're not quite there yet. As of Friday, September 27th, 95% of the scientific world agrees that climate change exists.
On Friday, the Intergovernmental Panel on Climate Change (IPCC) confirmed, with scientific investigations, research, and data to back it up (especially for all the nonbelievers), that "half of the observed increase in global average surface temperatures since the 1950s" is human caused.
The 399 parts per million of carbon dioxide in the atmosphere isn't going to disappear over night. Hundreds of factors come into play when making decisions that will mitigate the adverse consequences of climate change. Reaching the truth is definitely one of them.