One of the lessons learned from the German effort under the heading of Energiewende is the insight that simply shifting to renewables and recommending improving energy efficiency is not sufficient to lower greenhouse gas emissions. Combined with the expected radical change of technologies this...

To meet climate change mitigation targets, an exponential increase in global green hydrogen trade is expected. Countries rich in renewable energy resources would be in a favourable position to become exporters, potentially bringing opportunities for socio-economic development. The Brazilian...