Misinformation about climate change has been observed to reduce climate literacy levels (McCright et al 2016, Ranney and Clark 2016), and manufacturing doubt about the scientific consensus on climate change is one of the most effective means of reducing acceptance of climate change and support for mitigation policies (Oreskes 2010, van der Linden et al 2016). Therefore, it should come as no surprise that the most common argument used in contrarian op-eds about climate change from 2007 to 2010 was that there is no scientific consensus on human-caused global warming (Elsasser and Dunlap 2012, Oreskes and Conway 2011). The generation of climate misinformation persists, with arguments against climate science increasing relative to policy arguments in publications by conservative organisations (Boussalis and Coan 2016).
Consequently, it is important that scientists communicate the overwhelming expert consensus on AGW to the public (Maibach et al 2014, Cook and Jacobs 2014). Explaining the 97% consensus has been observed to increase acceptance of climate change (Lewandowsky et al 2013, Cook and Lewandowsky 2016) with the greatest change among conservatives (Kotcher et al 2014).
From a broader perspective, it doesn't matter if the consensus number is 90% or 100%. The level of scientific agreement on AGW is overwhelmingly high because the supporting evidence is overwhelmingly strong."
Source: https://iopscience.iop.org/article/10.1088/1748-9326/11/4/048002
https://mediabiasfactcheck.com/institute-of-physics-iop/