I know it is hard, probably very hard, to imagine, but the world is possibly sitting on the edge of a series of severe famines which will affect many hundreds of millions of people. For most people now, a famine would be unthinkable, especially when we stroll through supermarkets with aisles heaving with many varieties of food. Also, people tend to have the wrong idea about famines. A famine is not the sight of empty shelves in the shops, which may have happened due to panic buying and therefore there is a lot of food at home.
But the risk of real, serious famines is not zero, and in fact, they are happening now and/or approaching significantly high levels of probability in many parts of the world. There are several factors causing this, for example, economic losses due to the Covid-19 pandemic, bad governance, armed conflicts, natural disasters, etc. However, what may be worse is that the situation is being badly exacerbated by climate change and environmental destruction.