Various Sources on the Impacts of Climate Change

This blog post is a repository of sources I use in teaching.


Intergovernmental Panel on Climate Change 6th Assessment

The IPCC provides regular assessments of the scientific basis of climate change, its impacts and future risks, and options for adaptation and mitigation. Created in 1988 by the World Meteorological Organization (WMO) and the United Nations Environment Program (UNEP), the objective of the IPCC is to provide governments at all levels with scientific information that they can use to develop climate policies.


Their 6th Assessment Report was published in three sections from August 2021 to March 2022. References are below. The reports themselves are pretty dense (😯) but climate scientist Dr. Ella Gilbert translates the report into something which is a little easier to process (if no easier to accept) in the following videos. You'll also find links to the reports, and related newspaper articles.

Physical Science of Climate Change (Working Group I)


Impacts, Adaptation and Vulnerability (Working Group II)


Mitigation (Working Group III)


Some sources on the Economic Impact of Climate Change

  • How Climate Migration Will Reshape America - The New York Times In all, Hauer projects that 13 million Americans will be forced to move away from submerged coastlines. Add to that the people contending with wildfires and other risks, and the number of Americans who might move — though difficult to predict precisely — could easily be tens of millions larger. Even 13 million climate migrants would rank as the largest migration in North American history. The Great Migration — of six million Black Americans out of the South from 1916 to 1970 — transformed almost everything we know about America, from the fate of its labor movement to the shape of its cities to the sound of its music. What would it look like when twice that many people moved?

  • Economic impacts of climate change | Deloitte Insights The Intergovernmental Panel on Climate Change (IPCC), the most authoritative scientific body on the topic, finds that keeping mean surface temperature increases to no more than 1.5 C is critical for avoiding the most devastating impacts of climate change. Doing so means cutting global GHG emissions by roughly 50% by 2030 (from 2010 levels) and reaching “net-zero” emissions—releasing no more carbon into the atmosphere than is removed—by 2050. Achieving net-zero carbon emission by 2050 would require a radical, top-to-bottom transformation of the global economic system, especially our energy, transportation, and agriculture practices.

  • The UN Principles in Responsible Investing includes 2775 institutional investors, holding $121 Trillion in assets under management. The key principle is to incorporate ESG analysis into investment decisions.

  • Larry Fink's Annual 2022 Letter to CEOs | BlackRock We focus on sustainability not because we’re environmentalists, but because we are capitalists and fiduciaries to our clients. That requires understanding how companies are adjusting their businesses for the massive changes the economy is undergoing. As part of that focus, we are asking companies to set short-, medium-, and long-term targets for greenhouse gas reductions. These targets, and the quality of plans to meet them, are critical to the long-term economic interests of your shareholders.


  • US National Intelligence Estimate of Impacts of Climate Change: Geopolitical tensions are likely to grow as countries increasingly argue about how to accelerate the reductions in net greenhouse gas emissions that will be needed to meet the Paris Agreement goals. Countries will compete to control resources and dominate new technologies needed for the clean energy transition. The increasing physical effects of climate change are likely to exacerbate cross-border geopolitical flashpoints as states take steps to secure their interests.

  • What would it take to reach net-zero global emissions by 2050? - Marketplace. From a report by McKinsey Global Institute: "200 million jobs would be gained by the transition to net zero, yet 185 million jobs would be lost around the world — so more jobs created than are lost. That still produces dislocation and churning that is extremely disruptive."

  • Yes, There Has Been Progress on Climate. No, It’s Not Nearly Enough. - The New York Times GHG reductions over the past decade have reduced projections of temperature rise from 4°C to 3°, which is still enough for the Greenland and Arctic ice sheets to melt, leading to a 40-foot rise in sea levels by 2060. (Note the Deloitte article indicating that this would make 136 megacities, including financial centers in NYC, London, Singapore, Beijing uninhabitable.)

  • How Far Have We Really Gotten With Alternative Energy? - WSJ There’s a lot of hype and confusion about carbon-free energy sources. Here’s a look at five of them: how much they produce, what they cost and what obstacles they face

  • Trillions in Assets May Be Left Stranded as Companies Address Climate Change - WSJ Write-downs of power plants, auto factories and fossil-fuel reserves could cause big losses in transition to renewable energy. There is a good video in this article estimating the cost to reduce global warming at $131 Trillion.