How Hot?

July 30, 2020

What if atmospheric carbon doubled?

Hello from Impact Delta. 

Periodically, we share updates and content that we produce, as well as select other news that caught our eye. In this issue:

How Hot? A better answer to the question: How hot is the Earth going to get, if atmospheric carbon dioxide doubles from pre-industrial levels? For 40 years, scientists could only estimate a range of 1.5-4.5 °C. The conclusion of a huge study, published last week, is the range is more like 2.6-3.9 °C.

Rethinking ESG in Private Equity – a recently published white paper Charles de Segundo co-authored with Paula Luff. In the post-pandemic world, firms may be tempted to take their old ESG approach and do it more intensely. We argue a reframing is in order.

An Asset Owners Guide to ESG – also co-authored with Paula. As flows into ESG-branded strategies grow, a common question is “how do we know if an investment manager is serious about ESG?”. This 8-point guide can help.

The Facts. In each issue, I share a few facts. Pre-industrial carbon dioxide levels were around 280 ppm, and fluctuated between about 180 and 300 ppm over the last 800,000 years. Today, that level is 415 ppm. This represents a trillion tons (or a “teraton”) of atmospheric carbon dioxide that have been added to the atmosphere since the industrial revolution began.

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About Impact Delta

A secular shift towards a more responsible capitalism is underway. Impact Delta is a specialist consultancy founded to help investment firms capitalize on this shift. We believe good environmental and social thinking helps investment firms raise capital and earn better returns. More about us here.


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