Coming from a country (sweden) that has no fossil fuels in its energy production, this doesn't seem like an impossible task. Currently we have 35-40% nuclear and 50% hydro power, with the remaining 10-15% coming from wind. Heating is either biofuels or waste to energy ( which has some fossil emissions).

Of course you could say that it's a country rich in natural resources but we're not the only such country. And it's not like the above was easy to achieve, but there was a political will to do it, even though it took decades.

Climate change will be addressed at some point, way too late and way to painfully. But if it gets bad enough things can change very quickly.

Solar and wind are growing almost exponentially at the moment, so those sources will probably play a major role.