There is no doubt that in the coming years we will all be searching for answers to the climate emergency. Put simply, if we just carry on as we are, then all human life will go extinct.
But don't panic.
On all things like fossil fuels, plastics and food supply, we may already have solutions. For fossil fuels we may be able to generate biofuels from algae. They may also provide alternatives to some of the materials used in plastics. We may also be able to add to cow's feed to dramatically reduce methane. We may well be able to synthesise proteins for food additives from algae. I quite expect there will be breakthroughs in battery technology in the next few years, so we can avoid lithium mining. I can also see solutions to renewable energy storage.
Basically we need to invest in solutions.