Green technology barometer 2022/23

Overall Rating



The overall ratings tab shows the performance of the economies tested against each other and aggregates scores generated across the following four pillars: ocean environment, marine activity, technological innovation, policy and regulations.

This pillar ranks each country by its level of seawater pollution, plastic recycling efforts, CO2 emissions from marine activities (compared to the size of the economy), and recent change in total greenhouse gas emissions. waste.

This pillar ranks each country based on the sustainability of its marine activities, including shipping, fishing and protected areas.

This pillar ranks each country based on its contribution to ocean sustainable technology research and development, including spending, patents and startups.

This pillar ranks each country based on its stance on policy and regulation related to ocean sustainability, including national policies, taxes, fees and subsidies, and enforcement of the law of the sea. international.

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MIT Technology Review Insights would like to thank the following individuals for their time, views, and insights:

  • Valérie Amant, Director of Communications, The SeaCleaners
  • Charlotte de Fontaubert, Global Green Economy Leader, World Bank Group

  • Ian Falconer, Founder, Fishy Filaments

  • Ben Fitzgerald, CEO, CoreMarine

  • Melissa Garvey, Global Director of Ocean Conservancy, The Nature Conservancy

  • Michael Hadfield, Professor Emeritus, Principal Investigator, Kewalo Marine Laboratory, University of Hawaii at Mānoa

  • Takeshi Kawano, Executive Director, Japan Agency for Marine-Earth Science and Technology

  • Kathryn Matthews, Chief Scientist, Oceana

  • Alex Rogers, Chief Scientific Officer, REV Ocean

  • Ovais Sarmad, Executive Deputy, United Nations Framework Convention on Climate Change

  • Thierry Senechal, CEO, Finance for Impact

  • Jyotika Virmani, Executive Director, Schmidt . Ocean Institute

  • Lucy Woodall, Associate Professor of Marine Biology, University of Oxford, and Principal Scientist at Nekton



Methodology: Green technology barometer 2022/23

Now in its second year, the Green Technology Barometer assesses and ranks how each of the world’s largest maritime economies promotes and develops green (sea-centric) technologies that reverse the effects impacts of climate change on ocean ecosystems and how they take advantage of ocean-based technologies. resources to reduce greenhouse gases and other impacts of climate change.

To build the index, MIT Technology Review Insights compiled 20 quantitative and qualitative data indicators from 66 countries and territories with coastlines and maritime economies. This includes analysis of selected datasets and key research interviews with global green technology innovators, policymakers and international ocean sustainability organisations. Through trend analysis, research, and a peer-reviewed process in consultation with a number of experts on the subject, weighted assumptions were assigned to determine the relative importance of the influence of each indicator of a country’s green technology leadership.

These indicators measure the influence of each country or territory’s maritime and economic sectors on the marine environment and how quickly they have developed and deployed technologies that improve them ocean health outcomes. Policy and regulatory compliance factors were considered, in particular compliance with international fishing treaties and marine protection laws.

The indicators are organized into four pillars, assessing metrics around the topic of sustainability. Each metric is scored from 1 to 10 (10 being the best performer) and weighted based on its contribution to the respective pillar. Each pillar is weighted to determine its importance in the total score. Since these research efforts focused on countries developing green technologies to promote ocean health, the technology pillar ranked highest, accounting for 50% of the total score.

The four pillars of the Green Technology Barometer are:

Carbon emissions due to maritime activities and their relative growth. The metrics in this pillar also assess each country’s efforts to reduce ocean pollution and promote ocean ecosystem health.

Efforts to promote sustainable fishing practices, strengthen and maintain marine protected areas.

Progress in advancing the development of sustainable ocean technologies across a number of related areas:

  • Clean Innovation Score from the MIT Technology Review Insights Green Futures Index 2022.
  • A collection of marine-related patents and technology startups.
  • An assessment of each economy’s use of technology-enabled technologies and processes to facilitate ocean sustainability.

Committed to the conclusion and implementation of international treaties that promote ocean sustainability and practice sustainable fishing.

About us

MIT Technology Review was founded at the Massachusetts Institute of Technology in 1899. MIT Technology Review Insights is the custom publishing division of MIT Technology Review. We conduct qualitative and quantitative research and analysis worldwide and publish a wide variety of content, including articles, reports, infographics, videos, and podcasts.

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