City of Houston Receives “A” Grade for Citywide Climate Action and is Named New Generation of Climate Leaders on CDP 2021

November 18, 2021 -- The CDP has recognized the City of Houston as one of just 95 cities across the globe that is taking bold leadership on environmental action and transparency. The CDP, formerly known as the Carbon Disclosure Project, selected cities making big impacts even with the continued pressures of the ongoing coronavirus pandemic on local and national economies.

"Houston's goal is to be a leader in climate action and adaptation. Obtaining an A ranking in the CDP report demonstrates through data and metrics that the City is moving in the right direction," said Mayor Sylvester Turner. "As we celebrate Houston Climate Week and reflect on the outcomes of COP26, we know we have a long way to go. However, I am encouraged by the actions we have taken to address the climate crisis."

Designed to encourage and support cities to ramp up their climate action and ambition, CDP's Cities A-List is based on environmental data disclosed by cities to the CDP-ICLEI Unified Reporting System. To score an A, a city must have and publicly disclose a city-wide emissions inventory, have set an emissions reduction target and a renewable energy target for the future, and have published a climate action plan. A city must also complete a climate risk and vulnerability assessment and have a climate adaptation plan to demonstrate how it will tackle climate hazards. Many A-List cities are also taking a variety of other leadership actions, including a political commitment from a city's mayor to tackle climate change.

In 2021, less than one in ten cities scored by CDP (9.8% of such cities) received an A. A-List cities are demonstrating their climate leadership through concerted and effective action, just as national governments were asked to do at COP26.

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The City of Houston and the other 94 cities on this year's A-List are also celebrated for showing that urgent and impactful climate action - from ambitious emissions reduction targets to building resilience against climate change - is achievable for cities with varying climate realities and priorities. To meet the new targets agreed at COP26, more cities, regions, and countries must go further and faster.

This is Houston's first year receiving an A. The efforts taken by Mayor Turner in creating Houston's first-ever climate action and resilience plans have demonstrated the impact of his leadership in driving climate action. While the City has experienced seven federally declared disasters in six years – including extreme floods, a winter freeze, and a pandemic -- mitigation and adaptation projects, programs, and initiatives are making Houston more resilient, equitable, and better prepared for climate impacts. These include projects like the Sunnyside Solar Farm, the design and future implementation of large-scale transformational flood control projects like the North Canal, and the implementation of nature-based solutions at all levels – neighborhood, City, and region. As the City advances decarbonization, focusing on four pillars - waste management, building optimization, electrification of transportation, and energy transition – aims to ensure that efforts are focused on Houstonians and equity.

  • Houston is one of 95 cities to receive top score on climate action from environmental impact non-profit, CDP.
  • A-List cities build climate momentum, taking twice as many climate mitigation and adaptation measures as non-A Listers.
  • Only 9.8% of cities that were scored in 2021 received an A score.

The full 2021 A List of cities can be found here

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About the Mayor's Office of Resilience and Sustainability

The Mayor's Office of Resilience and Sustainability is responsible for implementing the Resilient Houston Plan and the Houston Climate Action Plan (CAP). The plans provide a clear framework to foster the growth of a Houston that is both a healthy place to live, as well as an equitable, inclusive, and affordable City that leads in climate mitigation and adaptation and offers a transformative economy that builds forward. To learn more about the CAP or Resilient Houston, visit

About CDP

CDP is a global non-profit that runs the world's environmental disclosure system for companies, cities, states and regions. Founded in 2000 and working with more than 590 investors with over $110 trillion in assets, CDP pioneered using capital markets and corporate procurement to motivate companies to disclose their environmental impacts, and to reduce greenhouse gas emissions, safeguard water resources and protect forests.

Over 14,000 organizations around the world disclosed data through CDP in 2021, including more than 13,000 companies worth over 64% of global market capitalization, and over 1,100 cities, states and regions. CDP is a founding member of the Science Based Targets initiative, We Mean Business Coalition, The Investor Agenda and the Net Zero Asset Managers initiative. Visit or follow us @CDP to find out more.

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