You're rightly said Swagatika. Everything what we know from our childhood to till now and whatever we imagine daily is available in this earth. Earth is full of each and everything as per our need and requirement. However we're incapable of handling and caring her property. As you said, everything is going lessening day by day, but human tendency is too changing places, habits, and choices year by year. People are always in search of new things and innovative ideas as per the deficit in their life. If people understand the value of natural resources avail today, then there will be no scarcity in future. Hope, everything will be fine and can be fulfilled as per the necessity in future. But, we've think seriously about the topic of climate change, which can't be controlled later if we're not able to act today. Thousands of years ago in the age dinosaurs, there was plenty of things and natural resources available in earth. However, they dinosaurs don't know the value of things as humans know. The age was vanished when they fight and started eating their kids due to lack of sufficient food. This thing will not happen in human age until and unless the people are not aware of these things.
'Every bad situation will have something positive. Even a dead clock shows correct time twice a day.'