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The Holocene Extinction: The 6th Greatest During the last 10,000 years:

In facing climate change, what we already know requires a response; it cannot be easily dismissed. Significant levels of scientific consensus—even in a situation with less than full certainty, where the consequences of not acting are serious—justifies, indeed can obligate, our taking action intended to avert potential dangers. In other words, if enough evidence indicates that the present course of action could jeopardize humankind’s well-being, prudence dictates taking mitigating or preventative action.

This responsibility weighs more heavily upon those with the power to act because the threats are often greatest for those who lack similar power, namely, vulnerable poor populations, as well as future generations. According to reports of the IPCC, significant delays in addressing climate change may compound the problem and make future remedies more difficult, painful, and costly. On the other hand, the impact of prudent actions today can potentially improve the situation over time, avoiding more sweeping action in the future.

Climate Change and Catholic Social Teaching

God has endowed humanity with reason and ingenuity that distinguish us from other creatures. Ingenuity and creativity have enabled us to make remarkable advances and can help us address the problem of global climate change; however, we have not always used these endowments wisely. Past actions have produced both good works and harmful ones, as well as unforseen or unintended consequences. Now we face two central moral questions:

  1. How are we to fulfill God’s call to be stewards of creation in an age when we may have the capacity to alter that creation significantly, and perhaps irrevocably?
  2. How can we as a “family of nations” exercise stewardship in a way that respects and protects the integrity of God’s creation and provides for the common good, as well as for economic and social progress based on justice?

Catholic social teaching provides several themes and values that can help answer these questions.