CO2 / PPM /Annual Averages / Data Source: noaa.gov 1980 338.91ppm 1981 340.11ppm 1982 340.86ppm 1983 342.53ppm 1984 344.07ppm 1985 345.54ppm 1986 346.97ppm 1987 348.68ppm 1988 351.16ppm 1989 352.78ppm 1990 354.05ppm 1991 355.39ppm 1992 356.1ppm 1993 356.83ppm 1994 358.33ppm 1995 360.18ppm 1996 361.93ppm 1997 363.04ppm 1998 365.7ppm 1999 367.8ppm 2000 368.97ppm 2001 370.57ppm 2002 372.59ppm 2003 375.14ppm 2004 376.96ppm 2005 378.97ppm 2006 381.13ppm 2007 382.9ppm 2008 385.01ppm 2009 386.5ppm 2010 388.76ppm 2011 390.63ppm 2012 392.65ppm 2013 395.39ppm 2014 397.34ppm 2015 399.65ppm 2016 403.09ppm 2017 405.22ppm 2018 407.62ppm 2019 410.07ppm 2020 412.44ppm 2021 414.72ppm 2022 418.56ppm 2023 421.08ppm 2024 424.61ppm 2025 427.35ppm
CO2 / PPM /Annual Averages / Data Source: noaa.gov 1980 338.91ppm 1981 340.11ppm 1982 340.86ppm 1983 342.53ppm 1984 344.07ppm 1985 345.54ppm 1986 346.97ppm 1987 348.68ppm 1988 351.16ppm 1989 352.78ppm 1990 354.05ppm 1991 355.39ppm 1992 356.1ppm 1993 356.83ppm 1994 358.33ppm 1995 360.18ppm 1996 361.93ppm 1997 363.04ppm 1998 365.7ppm 1999 367.8ppm 2000 368.97ppm 2001 370.57ppm 2002 372.59ppm 2003 375.14ppm 2004 376.96ppm 2005 378.97ppm 2006 381.13ppm 2007 382.9ppm 2008 385.01ppm 2009 386.5ppm 2010 388.76ppm 2011 390.63ppm 2012 392.65ppm 2013 395.39ppm 2014 397.34ppm 2015 399.65ppm 2016 403.09ppm 2017 405.22ppm 2018 407.62ppm 2019 410.07ppm 2020 412.44ppm 2021 414.72ppm 2022 418.56ppm 2023 421.08ppm 2024 424.61ppm 2025 427.35ppm
News & Views

Leaders and laggards: why climate strategies differ across US public pension funds

Against the backdrop of growing political backlash against climate ambitions, climate strategies and targets at US public pension schemes are diverging

Minnesota’s State Board of Investment (SBI) has been around since 1885. The board – which looks after the state’s public pension scheme – has been refining its climate investment strategy in recent years. SBI’s inaugural attempt at assessing its climate risk exposure came back in 2019.

By 2029, SBI is aiming to invest $1bn in climate solutions. It is one of only five US public pension schemes with an explicit target. That is according to a new assessment of US public pension schemes by Sierra Club, an advocacy group.

The analysis, published today, compares 30 US public pension funds on their climate solutions investment strategies. The findings show a divergence – between the majority of funds that are lagging behind and a small minority leading the way.

Leaderboard

US public pension funds govern large pools of capital. At last count, they collectively held assets over $6.5tn. Their scale adds systemic heft to their climate solutions appetite – which Sierra Club says shapes their ability to deliver benefits to public sector employees.

“US public pensions depend on a strong, stable economy to deliver on their promised benefits to public sector workers”, notes Jessye Waxman, sustainable finance campaign advisor at Sierra Club.

Sierra Club’s scoring methodology incorporates both the processes behind setting a climate solutions target (think governance, reporting and guardrails) as well as the quality of the target itself.

The findings show the vast majority lagging behind. 22 of the 30 funds had no clear plan to invest in climate solutions, 24 had no net zero commitment and just eight had a strong degree of board oversight of climate risk.

Some funds, however, do seem to be making progress. Minnesota’s SIB, three funds governed by the New York City Comptroller (NYCERS, BERS, TRS), the Oregon Public Employees Retirement Fund and the New York State Common Retirement Fund scored high on the climate investment strategy indicator.

“While some US public pensions are beginning to address how climate change impacts portfolio performance, most still rely on high-level commitments or inadequate metrics that do little to drive emissions reductions in the real world and protect retirement security for millions of Americans”, Waxman adds.

Driving divergence

Partly, the differences in climate strategies have to do with their structure. For instance, the report shows that in some cases climate solutions holdings seem to result from diversification more so than dedicated exposures. Examples cited in Sierra Club’s report include California State Teachers' Retirement System (CalSTRs), one of the country’s largest asset owners.

“Without a stated strategy or target, there is no clear indication these pensions are proactively making new investments in climate solutions”, the report reads.

The quality of stated strategies, the report argues, also has to do with intentional classification of what counts as a solution and what does not.

For example, CalPERS – the country’s largest pension fund—has a $100bn climate solutions target. The report highlights the target’s inclusion of carbon capture and storage technologies. Something the authors believe is “a technology whose deployment and emissions-reduction outcomes remain uncertain without strong guardrails”.

Another difference between leaders and laggards is the extent to which climate solutions discussions are moving beyond energy. Nature and biodiversity for instance, tends to be on average, left out. The vast majority of Sierra Club’s sample had no policy on that front.

It is not immediately clear from Sierra Club’s numbers that a red-blue divide explains the divergence. Although schemes based in states such as North Carolina and Texas have governance processes that Sierra Club classifies as ‘anti-ESG’, several other funds with weaker scores are in democrat-governed states.

Progress, on the climate investment front, is visibly fragmented for America’s public pension schemes. Sierra Club’s inaugural assessment of these asset owners highlights where and why that fragmentation occurs. All, however, does not seem lost. In the midst of it all, a small minority are leading the way – improving not only the targets they adopt but also the processes that hold these targets in place.


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