Our physical environment is dependent on the various subsystems of our planet. Despite the wealth of resources that the Earth provides—like air, water, land, vegetation, etc.—its capacity to support the growing number of humans may have its limit.
Human population is now more than 7 billion. According to the United Nation’s estimate, it will reach 9 billion by 2050 if the current growth rate continues.
One major concern we have today is food supply. At the same time, human population cannot exceed the environment resources needed to sustain them.
Human should try harder to alter their behaviour to accommodate the limitations of Earth’s environment.
It has been said that humans are not passengers on spaceship Earth, but are its crew. This means we have a great responsibility of protecting this planet.
Nusrat Jahan, Jahangirnagar University