Join the global initiative to champion and accelerate solutions to the climate crisis, turning ideas into action.


Nominate your idea that can change the climate change. Let’s turn Ideas To Action. 


Dr. Rajiv Kumar

Climate Leader

Indian economist and is currently the vice-chairman of the NITI Aayog. He is Founding director of Pahle India Foundation, a non-profit research organisation that specialises in policy-oriented research and analysis.

Aaditya Uddhav Thackeray

Climate Leader

Indian Politician serving as Cabinet Minister of Environment & Climate Change (Maharashtra). Through his work, he has brought the conversation on climate change in the state to the forefront.

Dia Mirza

Actor & Climate Crusader

An actor and environmental activist, Dia Mirza is a prominent voice pushing for greener transformations in personal and community life.

Dr. Parag Khanna

Geopolitical Expert

Dr. Khanna forewarns of increased population displacement as a result of the climate crisis, urging governments and organisations to create an environment conducive to smooth transitions.

Karen Scrivener

Material Chemist

Karen is the head of Laboratory at Construction Materials, Ecole Polytechnique Fédérale de Lausanne. She believes that we can make concrete less problematic if we make a conscious shift in the composition of the popular material.

Patricia Espinosa

Executive Secretary, UNFCCC

Patricia Espinosa is a politician and diplomat and the Executive Secretary of the UN Framework Convention on Climate Change.

Madhusudhan Rapole

Clean Energy Innovator

Madhusudhan Rapole, Founder of Oorja Energy perceives cooling as a necessity of our times and is focussed on making it sustainable, healthy and economical for everyone.

Sumant Sinha

Renewable Energy Expert

Sumant, the Chairman of Renew, one of India's largest producers of renewable energy, is building an infrastructure that can effectively harness the sun’s energy to create a sustainable planet.


Secretary-General, Global Alliance for a Sustainable Planet

A development economist, lawyer and changemaker with over 40 years of varied experience, Mr. Tripathi is the Chancellor of Kalinga Institute of Social Sciences.

Dr. Ido Sella

Marine Biologist

Dr. Sella, co-founder of ECOncrete, creates bio-enhanced waterfronts that help marine life thrive despite growing urbanisation.

R.A. Mashelkar


One of the noted names in science globally, Dr. Mashelkar is working with urban Indian cities and corporations to put make the best clean transitions.

Sibarani Sofian

Urban Architect

Sibarani is leading the transition of Indonesia’s Capital city from Jakarta to East Kalimantan. He aims to create a city that incorporates the philosophy and foundations of the natural world.

Vidyut Mohan


Vidyut, co-founder of Takachar has created technology that turns waste crop residue into compost, thereby mitigating smoke emissions and creating extra income for marginalised farmers.

Dr. Manu Gupta

Humanitarian Worker

Dr. Gupta, co-founder, Seeds helps vulnerable communities across Asia in building resilience towards the impact of climate change-induced disasters.

Jennifer Holmgren

Clean Energy Expert

Dr. Jennifer Holmgren views carbon as an opportunity. As the CEO of LanzaTech, she believes that if recycled, it can become a great source of energy to fuel the new world.

Narayanan Vasudevan

Forest Conservator

As an Indian Forest Service officer and the former Head of the Mangrove Cell of Maharashtra, Mr. N Vasudevan highlights the potential of our coasts to mitigate the damages of climate change.

Isha Datar

Cellular Agriculture Expert

Isha Datar is the Executive Director at New Harvest. Her research compels us to re-imagine meat in a way that’s kinder to the environment.

Stefano Funari

Upcycling Entrepreneur

Stefano Funari is the founder of Iwasasari. His initiative reimagines pre-loved Indian six yards to create fresh fashion.

Anshuman Bapna

Climate Entrepreneur

As the founder of, Anshuman Bapna aims to equip 100M people to work on solving the challenges of the climate crisis.

Shneel Malik


Shneel combines bio research and architecture to design ‘living spaces’ that blur the lines between natural and concrete jungles.

Anastasia Volkova

Agricultural Innovator

As the CEO and Co-founder of Regrow Anastasia Volkova invests in one of the world’s oldest carbon banks - the soil.

Aparna Pallavi

Journalist and Researcher

As an environment journalist, Aparna Pallavi reminds us of the invisibility of traditional agricultural practices and how reviving them may help us cope with the climate crisis.

Ermias Kebreab

Animal Scientist

Dr. Kebreab’s research shows that feeding seaweed and organic feed additives to dairy cows can considerably reduce methane emissions from cattle.

Andreas Binkert

Sustainable Urban Developer

Andreas Binkert is the President of 2000 Watt City project. He works towards building a scalable green city model that runs on the principle of carbon and electric equity for citizens in both the global north and south.

Deepak Ramola


Deepak Ramola is a writer, actor, teacher and lyricist. Originally hailing from the hill town of Dehradun, he is now a well-known artist and founder of Project Fuel.


Researcher & Innovator

Shrikumar, co-founder of Sea6 Energy Pvt. harnesses the potential of seaplane biomass or ocean farming to build a thriving and sustainable bio economy.

Nigel Topping

UN High Level Climate Action Champion, COP26

Nigel Topping is the UN's High-Level Climate Action Champion. His aim is to amp up climate action ahead of COP26, the 2021 UN climate conference taking place in Glasgow.

Monica Araya

Electrification Advocate

Monica Araya works with leaders in government, business, philanthropy and activism to accelerate the shift toward emissions-free transportation.

Let it Happen


Dutch twin sisters Norah and Yarah along with younger sister Rosa share a passion for vibrant dance that led to the formation of Let It Happen.

Enric Sala

Marine ecologist

Enric Sala is a former university professor who saw himself writing the obituary of ocean life and quit academia to become a full-time conservationist as a National Geographic Explorer-in-Residence.

Gabriel Kra

Climate Tech Investor

A scientist, entrepreneur and founder of Prelude Ventures, Gabriel Kra invests in solar energy, hydrogen, plant-based food, storage and other climate technologies.

Thomas Crowther

Ecosystem Ecology Professor

In collaboration with vast networks of ecologists around the world, Thomas Crowther works to address the global threats of biodiversity loss and climate change.

Ryah Whalen

Innovator and aviatiOn Expert

As the director of BCG Innovations at the Boston Consulting Group, Ryah Whalen incubates new businesses and ventures and is an expert on the international aviation sector.

Shweta Narayan

Climate and health campaigner

From her base in India, Shweta Narayan works on accelerating the role of health professionals in climate action as the international campaigner for Health Care Without Harm.

Hongqiao Liu

Journalist and policy expert

Hongqiao Liu is a Chinese journalist who has been covering climate change since 2010. She now writes for Carbon Brief where she decodes China’s climate and energy policies.

Rachel Kyte

Sustainable development diplomat and activist

Rachel Kyte works to identify the path to clean systems and, as the dean of the Fletcher School at Tufts University, focuses on preparing tomorrow’s leaders for a decarbonizing world.

John Doerr

Engineer & investor

John Doerr is an engineer, acclaimed venture capitalist, chairman of Kleiner Perkins and the author of "Speed and Scale" and "Measure What Matters."

Ilissa Ocko

Atmospheric scientist

A senior scientist at the Environmental Defense Fund, Ilissa Ocko works on climate impacts and mitigation with a particular focus on ways to immediately curb climate change.

Nat Keohane

Climate policy advocate

Nat Keohane is president of the Center for Climate and Energy Solutions. He works on market-based policies and high-integrity markets for tropical forest carbon.

Christiana Figueres

Stubborn optimist

Christiana Figueres is an internationally recognized leader on climate action and steered the global diplomatic effort that culminated in the 2015 Paris Agreement.

Al Gore

Climate advocate

Nobel Laureate Al Gore focused the world's attention on the global climate crisis.

Gavin McCormick

High-tech environmental activist

Gavin McCormick is a cofounder of the Climate Trace coalition, which combines satellites and artificial intelligence to detect human-caused greenhouse gases from all major sources.

Jack Dangermond

Geographic Information Systems pioneer

Jack Dangermond cofounded ESRI and believes that geospatial thinking will help us preserve the health of the Earth’s complex systems.

Farwiza Farhan

Forest conservationist

Farwiza Farhan is a marine biologist and forest conservationist seeking to protect and restore the Leuser Ecosystem in Sumatra. She is a 2021 TED Fellow

Jane Zelikova

Climate change scientist

Jane Zelikova is an ecosystem scientist studying the impacts of climate change in natural and managed landscapes with a focus on engineered and natural carbon sequestration.

Sathya Raghu

Green farming innovator

Sathya Raghu’s agricultural startup builds low-cost greenhouse systems helping Indian smallholder farmers confront the impacts of climate change. He is a 2021 TED Fellow.

Johan Rockström

Climate Impact Scholar

A co-developer of the planetary boundaries framework, Johan Rockström works to understand Earth’s resilience.

Alok Sharma

President-Designate of COP26

Alok Sharma is a British politician, Cabinet Minister and President-Designate of COP26, the 26th United Nations Climate Change Conference.

Vishaan Chakrabarti

Architect and author

Vishaan Chakrabarti believes that cities -- if they are designed to be sustainable, equitable and joyous -- are the best hope for humanity.


Experimental vocalist

Harry Yeff, also known as Reeps100, is a London-based artist and creative technologist, utilizing an almost inhuman vocal range to drive his performative and large-scale artworks and installations.

Lucas Joppa

Chief Environmental Officer, Microsoft

Scientist Lucas Joppa leads Microsoft’s sustainability strategy across its worldwide business and founded the company’s AI for Earth program.

Vandana Singh

Climate Imagination Fellow

An author of speculative fiction, professor of physics and interdisciplinary researcher, Vandana Singh is one of the four inaugural Climate Imagination Fellows.



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The goal: To build a better future by cutting greenhouse gas emissions in half by 2030 in the race to a zero-carbon world – a world that is safer, cleaner and fairer for everyone.


Every organization, company, city and nation and citizens everywhere are invited to collaborate with Countdown and take action on climate. It is a movement open to everyone – and everyone has a vital role to play.


Countdown seeks to answer five fundamental, interconnected questions that help inform a blueprint for a cleaner future.
We are bringing together scientists, activists, entrepreneurs, urban planners, farmers, CEOs, investors, artists, government officials, and others to find the most effective, evidence-based ideas out there. Our goal is to identify the bold solutions that can be activated when people break out of their silos and rise to the challenge.
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