We are just humans, insignificant little creatures in the greater scheme of things as controlled by nature.
We cannot, despite the high opinion we have of our abilities, control the climate, the food supply, or natural events such as earthquakes, volcanic eruptions, pandemics or tsunamis.
Many populations will suffer, just as they have always done throughout history.
Life is not fair. It never has been and it never will be, the fittest species will survive longer that the unfit. Natural selection will see to it.