a tough place to live in.
To sustain life well the environment needs to be suitable chiefly in terms of its water, salt, warmth, weather, radiation, chemical and biological balance. Any of these being unsuitable, because of nature or because of human activities, can make a region a poor area for living in. The environment can be a part of general human poverty - and it can also help cause, maintain or worsen general human poverty.
Nature and Environment.
Nature can be tough. Some parts of the world get too little rain and some get too much rain, giving deserts or swamps. Some parts of the world are too cold and some too hot.
Much of our world is not naturally well suited to producing food of otherwise sustaining human life easily. And that means that humans often need to use drainage for too much water, use irrigation for too little water, and use other methods to try to create and maintain sustainable environments. Sometimes these human environment activities are successful and sustainable, but sometimes they are unsuccessful and may even worsen the environment significantly.