Shaping the low carbon economy Climate Advisers is a mission-driven policy and politics shop working to deliver a strong low-carbon economy. In the United States and around the world, we create and implement large-scale, cost-effective strategies to strengthen climate action and improve lives.
  • Climate + Energy

    Our political, policy and diplomatic expertise shapes
    climate and energy solutions

  • Forests + Lands

    We catalyze action and innovative financing to
    reduce climate pollution from forests and lands

  • Sustainable Development

    We create climate solutions that accelerate sustainable development,
    spur economic growth and fight poverty

  • Capital Markets

    We perform sustainability risk analysis to shine
    a spotlight on the forest commodity industry


Climate Advisers brings together globally recognized thought leaders on climate and energy, forests and lands, and sustainable development. We specialize in breakthrough ideas informed by a deep understanding of complex policy and political challenges.


The latest insight into U.S. and global climate challenges and solutions.

Recent Posts

  • June 22, 2018

    Creating Negative Emissions: The Role of Natural and Technological Carbon Dioxide Removal Strategies

    By Claire Langley

    A new report from Climate Advisers makes the case that natural solutions are abundant, well-understood, and readily-available carbon dioxide removal options that exist today. They should be deployed fully and without delay.

    Scientists and other experts increasingly believe that nations will need to proactively deploy planetary-scale solutions to remove carbon dioxide (CO2) and other greenhouse gases (GHGs) from the atmosphere in addition to rapidly decarbonizing the global industrial economy in order to limit the impacts of climate change. The 2015 Paris Agreement recognizes this dual challenge. In addition to limiting temperature rise to well below 2ºC (and striving for 1.5ºC), its long-term goals commit signatories to balancing emissions from sources and removals in sinks in the second half of the century.

    Carbon Dioxide Removals (CDR) include both natural and technology-based methods to capture and either store or use CO2. Natural approaches use photosynthesis to absorb atmospheric CO2, storing it in above-ground biomass, as well as in roots and soil. Technological approaches use man-made methods to remove CO2 from point sources such as power plants and industrial facilities, as well as from the atmosphere.

    The table below provides a summary of the most prevalent CDR approaches.

    Our new report attempts to bring CDR into the mainstream climate conversation by identifying powerful solutions that are ready and cost-effective to deploy today.

    Key Findings

    • Natural solutions are the most readily-available CDR options. Most are very well-understood and have been deployed on a large scale for decades. Technological solutions are still largely immature, most exist only at the laboratory or demonstration stage.
    • Natural solutions are currently a far more cost-effective option to capture carbon dioxide, with a price tag that is an order of magnitude lower per ton of CO2 captured than technological solutions.
    • Natural CDR also offers numerous co-benefits, including more resilient ecosystems, increased wildlife habitat and biodiversity, improved water quality and erosion control. With some minor exceptions, technological CDR would be deployed purely for its climate mitigation benefits. This might make it more difficult to obtain buy-in from a diverse group of stakeholders.
    • Natural CDR may not be enough to meet the goals of the Paris Agreement. There are significant limiting factors to Natural CDR through both saturation effects—the natural limit of biomass to store carbon—and land constrains will cap the mitigation potential of solutions such as afforestation/reforestation and make them costlier.
    • The cost of technological approaches will likely decrease in the decades to come while their mitigation potential will remain largely unchanged.
    • Encouraging large-scale deployment of CDR should be a component of all truly visionary international climate action agendas and national long-term emissions strategies, with a strong early emphasis on natural CDR over the next few decades and continued research and development of technological CDR as an insurance policy over the long term.

    Summary of CDR Approaches, by Factor

    Report Recommendations

    To meet the climate challenge, we must achieve a balance between GHG sources and sinks, through actions to reduce emissions and increase removals. However, attention to the latter half of the equation has not kept pace. Therefore, governments, companies and advocates should:

    • Deploy mature natural solutions as early as possible to the greatest extent possible. Natural, biological sinks offer the best combination of benefits for the climate at the lowest cost today. Vegetation also takes time to reach its full sequestration potential.
    • At the same time, invest in continued research, development, and demonstration of technological CDR options so that they can be deployed by mid-century. New technology takes time to become cost-effective and reach commercial scales.
    • Focus on forests and land as a near term solution to galvanize international action and create more climate ambition in the short term.

    Click here to read the full report.

  • April 26, 2018

    Discussion Draft: The Economic Impact at the National Level of the Illegal Conversion of Forests for Export-Driven Industrial Agriculture


    Between 2000-2012, half of all tropical deforestation was the result of illegal clearing for industrial agriculture (Lawson et al. 2014).  This report aims to characterize the costs of this illegality.  While the impacts are widespread, including global, we focus our analyses on the costs to the countries in which the deforestation occurs.  We hope a broad estimate of financial loss will help convince forest country actors, like Finance Ministers, of the gains to be made by enforcing laws and regulations related to land use for industrial agriculture.

    Illegal clearing creates losses by undermining a country’s objectives for the management of its natural resources, like land and forests, which include, inter alia, promoting:

    • Economic activity that generates jobs, investment, as well as tax revenue;
    • Production of timber and non-timber forest products, as well as the maintenance of ecosystem functions like climate stabilization;
    • Contribution to the lives and livelihoods of rural people; and,
    • Protection of the rights of indigenous people, forest-owners, and forest-users.

    Read more >

  • January 22, 2018

    Blockchain: the missing link between climate finance and forest conservation?

    By Peter Graham and Erika Drazen

    If you haven’t heard of blockchain yet, you soon will. From its beginnings as a system for verifying Bitcoin transactions, blockchain is now sweeping the world of finance and expanding into other areas of business and public policy. And it’s already being touted as a tool for facilitating climate-related transactions, including results-based payments for REDD+ – as outlined in a recent policy paper from Climate Advisers, Lestari Capital and Lykke.

    So, what exactly is blockchain? In the jargon, it’s a distributed ledger technology (DLT), which uses a peer-to-peer network to securely verify and record financial and other transactions. Instead of relying on information stored in a central location, such as a single company’s database or server, DLT distributes the data associated with the transaction across an open network. This decentralized process makes it almost impossible to tamper with the data. Read more >

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  • Nigel Purvis

    Nigel Purvis is the founding President and CEO of Climate Advisers, a Washington, DC-based consultancy specializing in U.S. climate change policy, international climate change cooperation, global carbon markets, and climate-related forest conservation.

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  • Claire Langley

    Claire Langley is Managing Director of Policy and Research at Climate Advisers, focusing on international climate & energy policy and diplomacy, international political climate change strategy, and the sustainable development agenda.
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  • Janet “Betsy” Hanlon

    Janet “Betsy” Hanlon is Director of Finance at Climate Advisers, where she oversees all aspects of accounting, reporting, business analysis and other aspects of firm operations. more >

  • Emma McMahon

    Emma McMahon is a Program Coordinator for Climate Advisers, as well as the Executive Assistant to the President. As Program Coordinator, Emma manages a wide range of the firm’s policy projects. In her role as Executive Assistant, Emma is involved in almost all aspects of the firm’s projects.

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  • Peter Graham

    Peter Graham is Managing Director of Policy and Research at Climate Advisers, where he specializes in forests and land issues.  more >

  • Anthony Mansell

    Anthony Mansell is Director of Policy and Research at Climate Advisers, where he focuses on international climate policy, the role of carbon markets, and aviation. more >

  • Matt Piotrowski

    Matt Piotrowski is Senior Analyst at Climate Advisers, focusing on communication outreach with the financial sector, managing and editing the Chain Reaction Research newsletter, and providing analysis for investors to mitigate climate risks. more >

  • Veronica Matthews

    Veronica L. Matthews is the Human Resources Manager at Climate Advisers, where she oversees all aspects of the organizations’ most valuable assets, the people. more >

  • Gabriel Thoumi

    Gabriel Thoumi, CFA, FRM is Director Capital Markets at Climate Advisers where he provides global financial analysis for mitigating systemic climate risk while advising on greening capital markets. more >

  • Gwynne Taraska

    Gwynne Taraska is a Senior Fellow at Climate Advisers, focusing on international climate and environmental policy and diplomacy. more >

  • Zach Drennen

    Zach Drennen is Communications Manager with Climate Advisers, and provides nimble strategic communications for clients and coalitions, while building the organization’s reach and branding. He has experience with press for political campaigns, think tanks, and advocacy organizations. more >

  • Erika Drazen

    Erika Drazen is Associate of Policy and Research at Climate Advisers, where she focuses on forest and land use issues.  She has experience working on forests and climate change, zero deforestation supply chains, REDD+, and the Sustainable Development Goals (SDGs).

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  • Joel Finkelstein

    Joel Finkelstein is a Managing Director with Climate Advisers, and provides breakthrough strategy and execution for clients and coalitions. He has 19 years of experience creating communications campaigns for good.

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  • Bruce Searby

    Bruce Searby serves as Special Counsel to Climate Advisers.  In that role, he serves as Climate Advisers’ thought leader and expert on how to use U.S. and international laws to advance climate action.  Bruce’s current projects at Climate Advisers focus on combatting corruption and other illegal behaviors that drive tropical deforestation.

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  • Maria Belenky

    Maria Belenky is Director of Policy and Research at Climate Advisers, where she leads work on energy market transformation and steers much of the firm’s quantitative analytics on the mitigation impact of public policy. more >

About Us

Delivering a low-carbon economy that creates prosperity in a changing world requires bringing together the best ideas with practical insights about how the world works. To do that, we work to advance policy and politics simultaneously. We craft innovative policy and conduct transformative analysis. We reenergize static conversations with breakthrough communications, and create strategies to produce high-impact results.

  • Innovative Policy

    We develop innovative policy solutions, which quickly move to the center of the debate.

  • Political Strategy

    We expand the realm of the politically possible, creating and executing strategies that turn good ideas into reality.

  • Transformative Analysis

    We conduct transformative analysis that gives important context and spurs action.


 We work with philanthropies, think tanks, advocacy groups, international institutions, companies and governments.

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