Some countries are getting close to 100% renewable electricity generation. Portugal had a surplus of renewable energy last month and exported some. Costa Rica used 100% renewable energy for most of the past year.

The main obstacle to spreading this world-wide is the resistance of the planet roasters, who work behind the scenes to decrease investment in renewable energy.

The article doesn't mention deforestation and agriculture, big sources of greenhouse gases. However, if we got rid of electricity, industry and transport as sources of greenhouse gases, that could be enough to avert disaster. We will still need to end deforestation and reduce production of beef, for other reasons.