Fossil fuel use and the CO2 produced has no significant effect on climate.
The people who believe in AGW caused by CO2 are the people who are denying science. The science of thermalization and the Maxwell-Boltzmann distribution of molecule energy explain why CO2 does not now, has never had and will never have a significant effect on climate.
A potentially more important factor to humanity than failing to acknowledge that CO2 has no significant effect on climate is failing to recognize what actually does and that is the increasing atmospheric water vapor. It is the only thing countering the temperature decline that would otherwise be occurring. (‘Otherwise’ results from declining net effect of ocean cycles since 2005 and declining solar activity which has been declining since 2014 and dropped below ‘breakeven’ in early 2016.)
Average global atmospheric water vapor has been measured and reported by NASA/RSS since 1988 and shows an uptrend of 1.5% per decade. WV has increased about 8% since the more rapid increase began in about 1960.
Water vapor (WV) is the ghg (greenhouse gas) which makes the planet warm enough for life as we know it. The WV trend is up as reported by NASA/RSS as shown in Fig 3 of http://globalclimatedrivers2.blogspot.com. This analysis provides the explanation of why CO2 has no significant effect on climate and identifies what does (98% match with measured average global temperatures 1895–2016).
The warmer temperature is welcome but the added WV increases the risk of precipitation related flooding. IMO all rainwater retaining systems (dams, dikes, etc.) should be upgraded from design for 100 yr floods to design for 10,000 yr floods.