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

  • Forest + Lands

  • Sustainable Development

  • Innovative Policy

  • Political Strategy

  • Transformative Analysis

  • Communications


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.

  • 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.


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.

  • Communications

    We conduct targeted and elite communications to change minds and set the agenda.

Climate Intel

The latest intelligence about U.S. and global climate challenges and solutions.

Recent Posts

  • February 16, 2017

    Measuring the “Trump Effect” on U.S. GHG Emissions

    By Maria Belenky

    The surprising November 2016 election of Donald Trump to the Presidency of the United States left many in the environmental community scrambling to understand the implications of a Republican executive for President Obama’s climate legacy – and, more concretely, the U.S. emissions trajectory. Over the past eight years, Republican lawmakers had met the Obama regulatory agenda with increasing hostility, attempting on multiple occasions to block, roll back, and otherwise defund his climate initiatives. With sympathetic President Trump in the White House, these efforts are expected to bear fruit – but, how juicy the fruit, how bountiful the harvest? Read more >

  • January 25, 2017

    The New Transatlantic Clean Energy Agenda

    By Claire Langley

    Despite ongoing political changes in the United States and Germany, the transatlantic allies continue to have deep, shared agendas. At home, both governments want to accelerate economic growth, improve competitiveness, invest in infrastructure and strengthen manufacturing. Abroad, both are committed to fighting terrorism, controlling migration, promoting freedom and enhancing stability in key regions. Read more >

  • November 11, 2016

    New Analysis: The World Has Agreed to Mid-Century Balance

    By Joel Finkelstein

    In Paris, nations agreed to balance emissions and removals in the “second half of the century.” Our new analysis shows exactly when: the world agreed to mid-century balance. Read more >

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About Us

bcorpClimate Advisers is a mission-driven policy and politics shop working to deliver a strong low-carbon economy. We’re proud to be a Certified B Corporation, a new kind of company which meets higher standards of social and environmental performance, transparency, and accountability. Learn more.

  • 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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  • Maria Belenky

    Maria Belenky is a Senior Associate at Climate Advisers, where she contributes to wide range of the firm’s research and policy practice, including sustainable development, energy and climate policy, and tropical forest conservation. more >

  • 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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  • Laurel Fioravanti

    Laurel Fioravanti is the Human Resources Manager at Climate Advisers, where she oversees all aspects of Human Resources and Talent Acquisition. As the Human Resources Manager, she is responsible for implementing management strategies and policies that enable Climate Advisers to attract and retain experienced, high performing and talented professionals, and strengthen a collaborative culture. more >

  • Molly Garcia

    Molly Garcia is the Program Coordinator and Executive Assistant to the President at Climate Advisers. In this role, she supports the senior management team in their efforts to ensure that the firm is operating at maximum efficiency. more >

  • 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 >

  • Peter Graham

    Peter Graham is currently an independent consultant and Senior Fellow with Climate Advisers. Before starting his own independent consulting business, Peter led WWF’s Global Forest and Climate Programme. more >

  • Claire Langley

    Claire Langley is Director of Policy and Research at Climate Advisers, focusing on the post-2015 sustainable development agenda, and international climate & energy diplomacy. more >

  • Rebecca Lefton

    Rebecca Lefton serves as Director of Policy and Research at Climate Advisers. She specializes in international climate change and sustainable development policy. 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 >

  • 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 >

  • Michael Wolosin

    Michael Wolosin is a Senior Fellow with Climate Advisers, and has expertise shaping research and policy work on reducing emissions from global deforestation. Between 2009 and 2015, he was a member of Climate Advisers staff, most recently as a Managing Director.

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Our Partners

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

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1320 19th Street, NW, Suite 400, Washington, DC 20036