It is true that human activities really do harm to the plants and animals around us, however, People have different opinions on the necessary to protect them, some people think we can do nothing to protect them. While others think urgent measures is needed to tackle this problem. People who think we can do nothing to cope with this problem may hold the views like these. firstly, we can still live very well on this planet without some rare animals and plants, some cutting-edged science technology can produce synthetic materials that can be a substitute of natural organics. secondly, it will be a high cost to put money into protecting the dying out species, we can use these money into other more needed channels, such as improving the living condition of the poor as well as the education quality. finally, it is the nature choice to choose the stronger ones to survive, we can’t do much to interrupt this procedure. Otherwise, we will break the nature law. while those who totally against this view may think that, it is the human who have to be responsible for the worsening environment. we exploit resources from the nature without thinking further to protect it, that's the whole reason why most creatures are become extinct nowadays. moreover, if we still stand by those problems and ignore them, we may swallow the penalty which we once made to the nature. The Last but not least, our human is also part of the organic chain. we can have a better life only if we pay more attention to the circumstances we lived. From my perspective, I totally agree with this point. The earth is our mutual home, we have to share credit and blame with other creatures on this planet. Everyone must have the awareness of protecting the environment. In conclusion, effective measures are needed to change the environment we lived, and it is certainly deserved to do that.