Previous answers addressing the question at the links.
As the previous answers have stated in the sense of human environmental damages we can change our actions and reduce our impacts but what has already occurred cannot be changed. However, climate change on a geologic time scale is inevitable as humans have very little control over it because our existence is so small compared to the earth. Just think about how much the climate on the earth has changed over the 4.5 billion years it has existed — ice ages, global volcanic eruptions, etc. Sustainability is more about being conscious of our role within the environment, allowing life to prosper and adapting during this relatively short window we have on earth than it is to stop natural changes. The earth will change with or without us but it is our choice to decide how we want to spend our time here: that is what makes life so special.
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