current global population of 7.4 billion will to expand to 9 or even 10 billion by 2050, requiring vast additional amounts of food, fresh water, and mineral resources. Remember the number “10.” For every 1-calorie of food you eat, there are 10 calories of fossil fuels invisibly subsidizing it. We are literally eating fossil fuels, which are due to peak at some point in the not-too-distant future.
A responsible civilization would be focused on that fact with laser precision, and have in place an alternative plan for feeding itself in the future.