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The Science of Climate Change

Climate change is no longer a distant threat or just a possibility, it is now a reality for all of us. In this pathway, Kevin Trenberth, a renowned climatologist, delves into the science behind climate change. He first introduces the climate system, its main components and forces.

Tackling the Plastic Crisis

Plastic pollution is by far the biggest threat to our oceans and this remains an incredibly tough problem to solve. Plastic credits could potentially serve as one of the much needed solutions for this crisis.

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The Scale of the Net Zero Challenge

The price of meeting net zero is estimated to be between $100-150 trillion over the next 30 years. Regardless of this cost, we need to reach net zero before climate change does irreversible damage to the environment and the economy.

ESG, Sustainability and Impact Jargon Buster

ESG, sustainability, impact… they all just mean green, right? Not quite. Despite being used often interchangeably, there are distinct differences between these terms.

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Featured Pathways

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The Science of Climate Change

Climate change is no longer a distant threat or just a possibility, it is now a reality for all of us. In this pathway, Kevin Trenberth, a renowned climatologist, delves into the science behind climate change. He first introduces the climate system, its main components and forces.

Tackling the Plastic Crisis

Plastic pollution is by far the biggest threat to our oceans and this remains an incredibly tough problem to solve. Plastic credits could potentially serve as one of the much needed solutions for this crisis.

More pathways

Ready to get started?

PLANS & MEMBERSHIP

Our Platform

Expert led content

+1,000 expert presented, on-demand video modules

Learning analytics

Keep track of learning progress with our comprehensive data

Interactive learning

Engage with our video hotspots and knowledge check-ins

Testing & certification

Gain CPD / CPE credits and professional certification

Managed learning

Build, scale and manage your organisation’s learning

Integrations

Connect Sustainability Unlocked to your current platform

Featured Content

More featured content

The Scale of the Net Zero Challenge

The price of meeting net zero is estimated to be between $100-150 trillion over the next 30 years. Regardless of this cost, we need to reach net zero before climate change does irreversible damage to the environment and the economy.

ESG, Sustainability and Impact Jargon Buster

ESG, sustainability, impact… they all just mean green, right? Not quite. Despite being used often interchangeably, there are distinct differences between these terms.

More featured content

Ready to get started?

Ready to get started?

Asset Pricing Theory of Climate Hedge Portfolios

Asset Pricing Theory of Climate Hedge Portfolios

Robert Engle

Nobel Prize winning economist

In this video collaboration with MMF, Nobel Laureate and economist Robert Engle explores the asset pricing theory behind hedge portfolios, as well as how you would build a portfolio using either fundamental or statistical analysis.

In this video collaboration with MMF, Nobel Laureate and economist Robert Engle explores the asset pricing theory behind hedge portfolios, as well as how you would build a portfolio using either fundamental or statistical analysis.

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Asset Pricing Theory of Climate Hedge Portfolios

6 mins 14 secs

Key learning objectives:

  • Learn what a climate hedge portfolio is

  • Understand two analytic approaches to building a climate hedge portfolio

Overview:

Robert Engle argues that risky stocks are less desirable than stocks which are minimally risky. Stocks that are exposed to climate risk are not desirable but could expect to have higher expected returns and a hedge investor will want to short this risk. To build a hedge portfolio, fundamental analysis can be undertaken based on how climate change is going to impact industries or statistical analysis which recognises how stocks will react based on climate change news.

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Summary

What is the asset pricing theory behind hedge portfolios? 

Brown stocks are less desirable than green stocks. Stocks that are exposed to climate risk are not desirable but could expect to have higher expected returns and a hedge investor will want to short this risk. However, shorting these companies that are exposed to risk and going long companies that are not exposed to this risk, means you're going to achieve a negative risk premium. This says that your investment is going to underperform the market on average, which is a bad selling point to investors.

What are the two analytic approaches to building a hedge portfolio?

1. Fundamental analysis

This involves using data to frame how you think climate change is going to impact different industries. However, ESG data is often criticised as incomplete and not measuring specifically what is needed.

2. Statistical analysis

This recognises that when there is news about climate change, we would know which stocks are going up and which ones are going down and use this as a basis to form this portfolio.

 

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Robert Engle

Robert Engle

Robert Engle is a co-director of the Volatility and Risk Institute. He was awarded the 2003 Nobel Prize in Economic Sciences for his work on autoregressive conditional heteroskedasticity. He holds a Ph.D. in economics from Cornell University in New York, United States.

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