Or not.
Half the commenters here seem to assume that there are unlimited quantities of solar/wind power available to extract from nature
Whilst the supply is never-ending, there are very real limits on the extractable POWER - to the point that to replace the UK's carbon-emitting electricity generation capacity would require putting solar panels on EVERY available rooftop, most farm fields and carpetting the country in wind turbines without regard to safety factors.
The same applies in the USA, despite the far lower population density - because the losses involved in TRANSPORTING the generated power to where it's needed tend to balance the larger areas available to generate electricity.
And that still only accounts for 1/3 of carbon emissions. The other 2/3 are not in electricity generation. Getting rid of those requires far more than "merely tripling" electrical generation capacity (transportation alone requires doubling-to-tripling electrical power generation)
Concentrating on "Renewables" is mostly a matter of rearranging deckchairs on the Titanic. Yes, they CAN replace existing electrical generation capacity, but the requirement is to find 6-8 times existing electrical generation capacity, not merely 150% of it.
A bridge that only goes to an island 1/4 of the way across a river when it needs to replace a ferry service going from bank to bank is not going to see much use.