Just like the vaccine for COVID-19, the world needs a vaccine for climate change. Hydrogen seems to be that vaccine the world needs to win over the crises caused by climate change. This Lyceum will show that solutions based on technologies that produce, convert, store, and dispense hydrogen are the vaccine candidates to rid us of the poisonous effects of pollution. Fuel cells, SALT batteries, SALT-based air conditioning, and e-fuels from renewables are the key to preventing a catastrophe that is waiting to happen. From industry to homes, every part of the energy consumption chain must become clean and green. It also is the right time for us to take adequate precautions, wear our Climate Change mask and in our own small but significant way contribute to averting the climate crises.