Investor Guides

Global Adaptation and Resilience Investment (GARI)

Collins is an active participant in the Global Adaptation and Resilience Investment (GARI) working group, which was launched at the Paris COP21 global climate talks in 2015 and is now an official partner of the United Nation’s Secretary General's A2R Climate Resilience Initiative.

Investor Group

GARI has convened over 150 private investors, climate experts and other stakeholders in New York, London, and Washington DC to discuss practical approaches to investing that consider climate adaptation and resiliency. 

Investor Guide

 In 2017 the GARI group focused on developing an investor guide in response to interest from the private sector and private investors in climate adaptation and resilience.  

Release at One Planet Summit in Paris

The GARI 2017 Investor Guide to Physical Climate Risk and Resilience provides a 5-page "plain language" introduction to physical climate risk and resilience for investors. An initial draft was posted during the United Nations COP23 global climate talks in Bonn. The final Investor Guide was released during the One Planet Summit in Paris in December 2017. 


Lead authors are: Jay Koh, Founder of the Lightsmith Group; Emilie Mazzacurati, Founder of Four Twenty Seven, Inc.; and Chiara Trabacchi, PhD at IDB Invest. Collins is a contributing author to the guide. 

Real Estate Investor Guide

New Global Dataset on Real Estate Investment Trusts’ Exposure to Climate Change

Four Twenty Seven and real estate technology company GeoPhy released the first global dataset on the exposure of real estate investment trusts  (REITSs) to climate change in October 2018. The report Climate Risk, Real Estate, and the Bottom Line provides granular projections of the impacts of climate change on REITs.  Learn more here. 

Four Twenty Seven

Four Twenty Seven is a member of the Global Adaptation and Resilience Investment (GARI) group. Learn more here

Lender Guide

Lender's Guide for Considering Climate Risk in Infrastructure

This guide provides a framework for investment and credit officers to begin to ask the right questions about how climate change can impact the financial sustainability of their investments, and links revenues, assets, and costs with a project’s potential vulnerability to physical climate risks.

Sector Snapshots

The guide includes snapshots to demonstrate potential impacts on the following infrastructure sectors: transport, energy, telecoms, data management, real estate, and social infrastructure.


Authors include Acclimatise, Four Twenty Seven and Climate Finance Advisors, all involved with GARI.