Chapter 1 - Intro the climate and investing Flashcards
The WEF Global Risks Report 2023 ranked ‘failure to mitigate climate change’ as the number one long-term threat to the world and in the top five global short-term risks (ie. within two years)
2023 was hottest year on record, 1.48C warmer than the long term average before humans started burning fossil fuels
The IPCC says chance of breaching 1.5C target as early as 2030 stands at 50%
CLIMATE CHANGE DEFINITION
- a large scale, long term shift in the planet’s weather patterns and average temperatures
- changes associated with global warming, and
- a long term shift in global or regional climate patterns. climate change often refers specifically to the rise in global temperatures from the mid-20th c to the present
UNFCCC - ‘a change of climate which is attributed directly or indirectly to human activity that alters the composition of the global atmosphere and which is in addition to natural climate variability observed over comparable time periods.’
CC driven by set of GHGs (7!) under Kyoto Protocal and Doha Amendment which operationalise in the UN Framework Convention on Climate Change (UNFCCC)
- Carbon dioxide (CO2)
- methane (CH4) eg. from natural gas wells, 28x more powerful than co2
- nitrous oxide (N2O) eg. in fertilizer
- hydrofluorocarbons (HFCs) eg. HFC23 is a ghg 12400x stronger than co2, used in refrigerants
- perfluorocarbons (PFCs)
- sulphur hexafluoride (SF6)
- nitrogen trifluoride (NF3)
relative strength expressed as carbon dioxide equivalent
2 UNFCCC definitions - interconnected
1. Adverse effects of climate change mean changes in the physical environment or biota resulting from climate change that have significant harmful effects on:
- the composition, reseilience or productivity of natural and managed ecosystems,
- the operation of socio-economic systems, or
- human health and welfare
CLIMATE SYSTEM means the totality of the atmosphere, hydrosphere, biosphere and geosphere and their interactions
compounding effect - exacerbates existing issues and multiple climate change issues combine
some immediate impacts from increased GHGs in the atmosphere:
- changes in precipitation patterns - drier summers, wetter springs
- the loss of ice sheets and sea ice - melting glaciers
- an increase in extreme weather events - stronger storms, longer droughts, heatwaves
Taskforce on climate related Financial Disclosures (TCFD but the financial stability board (FSB)) - physical risks (chronic and acute hazards)
chronic = sea level rise, drought, temp patterns
acute = precipitation/flooding
extreme wind, cyclone
Transition risks - eg. policy and legal, market risk, reputation risk
PHYSICAL risk impacts inc physical damage to assets (urban centres, buildings, production and service facilities)
from extreme weather events - acute
and chronic - erosion, sea levels rising
direct and indirect impact on livelihoods
TRANSITION RISKS occur as the global economy decarbonises. The TCFD identifies policy and legal, technology, market and reputation as risks
- In some industries, these technology and market risks combined with regulatory risk are creating STRANDED ASSETS, meaning a significant negative impact on the value and future cash flows of the companies who own them
Scenarios and time horizons
- scenarios used to study how climate change might progress, how phys and transition issues may manifest
- Climate-related scenario analysis - key tool in studies and applied in finance and business
Challenges of scenario analysis
- Historical data insufficient as humans have never experienced an environment where CO2 concs in the atmosphere exceeded 400ppm nor the current accelerated rate of change
Concs above 400ppm were last experienced 4m years ago and the last time they increased by 100ppm took 10000 yrs
- scenario modelling does not rely on linear or historical trends to forecast the future. Instead, the challenges is to use integrated climate and economic models to develop potential future pathways
- Climate change interacts with many other existing issues - scenario modelling needs to take this into account and use feedback loops - help study the network of interactions
Timing of impacts (extreme weather events, tipping points) and their magnitude (initial, incremental, total) is uncertain and feedback loops not fully understood. model cannot reflect magnitude of interaction with other aspects of nature and the socio-economic system. more uncertain in longer time frames.
Many climate and integrated models available inc:
- policymaking, which looks at a desired outcome and works backward
- catastrophe models - designed for insurance industry and must be adapted to include climate information
- economic models, which must integrate the physical side of climate modelling
Common scenarios that are analysed include an end state of:
- 2C warming
- below 2C warming (usually 1.5)
- high carbon scenario (above 2C warming, often 3C warming or above)
Realisations drive mitigation efforts - also adaptation, resilience
Climate change mitigation, adaptation and Resilience
Mitigation - reduce GHG emissions
Corporate GHG emission scopes
Scope 1 emissions - GHGs that occur from sources that are owned or controlled by a company, activity or asset eg. GHGs from combusting natural gas in a boiler or burning coal to electricity or steel. In some sectors these are the main source of emissions
Scope 2 emissions
GHGs associated with PURCHASED electricity, steam, heat and/or cooling -> ‘purchased energy supply’). This is a share of the related emissions produced, for example, at the power production plant that supplies that electricity of the methane released in gas supply
Scope 3 emissions
include all other GHGs that are a consequence of a company’s activities or associated with the asset but are from sources not owned or controlled by the company or asset owner eg. the production of purchased materials.
For many sectors, scope 3 emissions outweigh direct emissions; in some cases very significantly.
for example, the vast majority of oil and gas companies are in the customer value chain ie. where the fossil fuel gets burned.
In other cases, supply chain plays big role -emissions from deforestation and livestock for a meat producer.
Understanding the supply and customer value chains underpins understanding the impact of a company or activity.
Carbon neutral - covers Scopes 1 and 2 and means that any GHG emissions from a company’s activities or an asset are balanced by an equivalent amount being removed and that Scope 1 and 2 GHG emissions do not increase
Net Zero - covers scopes 1,2,3.
About reducing GHG emissions to the lowest amount possible and where possible to zero.
Aims to reduce emissions using carbon sequestration, with a preference for long-term nature-based solutions (nbs), allowing for technological solutions eg. direct air capture (DAC) with permanent underground sequestration.
to achieve it requires all areas of the business
FINANCED Emissions are Scope 3 Category 15 emissions (as in GHG Protocol) for a financial corporate, which requires looking through to the emissions of investee and borrower companies, activities and/or assets.
This includes their Scope 1 and 2 emissions as a minimum, but also ideally their Scope 3 emissions, to understand the full carbon impact of providing financing to the entity
In the case of sovereign and other government debt, it is about the country’s production and/or consumption GHG emissions, and what share of those are enabled through the debt
Mitigation includes energy efficiency -> representative of a DEMAND SIDE initiative.
An example of mitigation based on shifting to a cleaner energy source is when a power generation utility changes the fuel they burn to generate electricity from coal or natural gas to renewables -> example of SUPPLY SIDE initiative
LONG timeframe and GLOBAL scale of climate change especially challenging. how this dynamic interacts with financial instruments, which typically have shorter time horizons challenging.