Global Climate action in mid-2024

Abstract: As the world suffers more and more from the effects of the climate crisis and global warming, the solutions to these serious threats involve a global transition to zero carbon emissions, which implies a rapid technological transformation and a general willingness to implement environmental regulations, including innovations in taxation.

On March 26, 2024, the NTO (Network of Tax Organizations) which  held a virtual seminar on “Implementing Environmental Taxes, Best practices and Lessons Learnt.” The seminar showcased some country cases, such as Norway and South Africa, indicating the different pathways taken by countries according to their development levels.

And this May 4, the CIAT Directorate of Tax Studies and Research has just published a study on environmental taxation in Latin America, emphasizing the importance of evaluating the distributional impacts of environmental taxes and the design of compensatory instruments.[1]

These are examples of the interest that CIAT, as well as other international tax network, provide to the regulatory aspects of the global environmental action to in order to preserve the world’s climate and biodiversity, and to avoid more catastrophic disruption.

The global climate crisis issue is a current topic whose relevance cannot be overstated, and the present blog proposes to report some recent progress in 2023 and 2024.

Acceleration of the climate change

In 2024, the global climate is expected to continue to change significantly, with rising temperatures, extreme weather, and shifting ecosystems as key indicators. The average global temperature may exceed 1.5°C above pre-industrial levels for the first time, which is a crucial threshold for stabilizing the Earth’s climate. According to Carbon Brief, 2024 is likely to be either the warmest or second-warmest year on record. (Carbon Brief) [2]. The disruption in agriculture, multiplication of storms and drought, and the rising sea levels are some of the tragic consequences.

The 2024 G-20 in Rio

The Climate policy Initiative[3] has recently published a “Stocktake of G20 Strategies and Practices” as a contribution to this year’s Brazilian G20 Presidency’s. This report uses the concept of bioeconomy as an economic model that uses only renewable resources to produce goods, services and energy. It aims to drive sustainable development and circularity, including principles like reuse, repair and recycle and conclude that the coming G-20 summit that will take place from 12 to 14 July in Brazil may find common grounds around this concept of sustainable bioeconomy.  It will focus on Sustainable goals 8 (Decent work and economic growth, 9 (innovation and infrastructure), 13 (Climate action) and 17 (Partnerships for the goals).

Climate Finance: still insufficient but increasing

Some numbers:

  • U.S. climate finance: Increased from $1.5 billion in 2021 to $5.8 billion in 2022 and exceeding $9.5 billion in 2023.
  • Global climate finance doubled to 1.3 trillion.
  • The World Bank Group climate finance to developing countries: Increased to a record $38.6 billion for the year ending July 1, 2023. According to the 2023 Global Landscape of Climate Finance, developing countries will need $212 billion per year in adaptation finance up to 2030, and $239 billion per year between 2031 and 2050.

According to the World Economic Forum[4], climate finance doubled to USD 1.3 trillion since 2021, however we need to increase by at least five-folds annually to limit warning to below 1.5°C. In addition, “The report finds that in 2022, investments in nature-based solutions totaled approximately $200 billion, but finance flows to activities directly harming nature were still more than 30 times larger[5]. The gap between the $100 billion annually committed by donor countries and the more than $2.4 trillion needed per year by 2030 to fund the climate transition is growing.

This exposes a concerning disparity between the volumes of finance to nature-based solutions and nature-negative finance flows and underscores the urgency to address the interconnected crises of climate change, biodiversity loss, and land degradation.[6]

The pathway to net-zero emissions

As the world evolve in dangerous waters, countries and large corporations are engaged towards a goal of net-zero emissions in the future.

The pathway to net-zero emissions require global collaboration by businesses, governments and citizens.

Green technological innovation and environmental regulation are the two pillars of the pathway to sustainability and to net-zero emissions. [7]

Globally, the year 2024 shows the rise in “net zero commitments”, meaning that the majority of today’s nations have a global commitment to reach a “net zero carbon emissions target”, but the date for achieving the goals are variable, mostly between 2030 and 2060 according to the country.

The organization “Net zero tracker” indicates how many nations[8], regions, cities and companies have indicated a goal of “net zero emissions”, and the result is this graph, reflecting different degrees of the credibility of these engagements. [9]

Source: Net zero Tracker (

Based on data from 4171 public and private entities, from left to right, blue indicate the progress really achieved. Dark green indicates commitments inserted in laws. Light green indicates pledges in policy documents (for nations) and in corporate strategies (for companies). Orange represent pledges not implemented so far, the red represents proposals emitted, and black represent the absence of any net zero target. Let us talk a little more about the net zero-emission targets.

140 countries have joined the “Net zero coalition with some, such as New Zealand, aiming at reaching this target by 2025.  Some forest-covered countries, such as Bhutan and Suriname, are even carbon negative, meaning that they remove more carbon dioxide (CO2) from the atmosphere than they emit.
In the private sector,  65% of the annual revenue of the world’s largest 2000 companies is now covered by a net zero target, demonstrating that net zero is becoming a corporate norm[10].

Technological innovations include renewable energy sources, energy storage and efficiency vital to reducing CO2 emissions. As an example, in 2023, solar energy generation grew by 23%, and wind generation by 10%, and clean energy represent now more than 30% of the energy produced by 215 countries included in the study ( Global Electricity review[11])

On the other hand, environmental regulations include carbon taxes, cap-and-trade programs and emission trading schemes. These are other essential tools to bring about a sustainable global economy.

Let us recall that taxation strategies can play a critical role in supporting the goal of achieving net zero emissions and addressing the climate crisis. Some of the most effective taxation strategies in this regard include:

  • Carbon taxes: establishing a price on carbon through taxation is one of the most direct tools to incentivize greenhouse gas emission reductions. These taxes make polluting activities more costly, motivating companies and consumers to opt for cleaner and more energy-efficient alternatives.
  • Tax incentives for renewable energy: Offering tax deductions, credits or tax rebates for renewable energy projects can accelerate investment in technologies such as solar, wind or hydroelectric. This can include everything from the installation of solar panels to the construction of large wind farms.
  • Tax breaks for energy efficiency: Providing tax incentives to businesses and households that improve their energy efficiency (e.g., by renovating buildings or upgrading industrial equipment) can significantly reduce energy consumption and emissions.
  • Taxing energy-intensive products: Imposing special taxes on products that require a lot of energy to manufacture or that have a high environmental impact during their life cycle can discourage their consumption and promote more sustainable alternatives.
  • Fossil fuel subsidy reform: Reducing or eliminating fossil fuel subsidies, which often distort the market in favor of polluting energy options, is crucial. Revenues from these taxes could be redistributed to support clean technologies and help communities affected by the energy transition.
  • Green bonds and other financial instruments: The government can issue green bonds to raise funds specifically for sustainability projects. While this is not a direct tax, it is part of a broader fiscal strategy to finance the transition to a low-carbon economy.
  • Tariffs on imports with a high carbon footprint: Imposing tariffs or border carbon adjustments on imported products that do not meet certain environmental standards can protect local industries that invest in reducing their environmental impact and promote sustainable practices globally. The most notable example is the European Union’s Carbon Border Adjustment Mechanism (CBAM), a program that aims to reduce carbon leakage by aligning the carbon prices of imported goods from six industrial sectors with those produced in the EU, effective May 2023.

Implementing these strategies requires a careful approach to balance effectiveness in reducing emissions with economic and social impact, ensuring that policies are both environmentally and economically sustainable.

We have dedicated our previous blog to the evolution of carbon taxes and ETS, and there is no big changes in this field[12].  More than ever, improving global climate governance for a green economic transformation is a key priority.

To conclude these considerations about the net zero goals:

  • There has been a huge rise in targets enshrined in national legislation or policy in the last 2.5 years, from 10% to 75%. The authors say this shows that net zero has moved from ambition to implementation.
  • Many entities still lack emissions reduction targets. This includes 439 states and regions in the top 25 emitting countries, 766 major cities, and 734 of the largest publicly listed companies.
  • Integrity is lacking; there are few signs of improvement in national, subnational and company net zero strategies over the past year, only 20% meet basic robustness criteria. However, measurement methodologies and best practices are advancing rapidly.

The path to net-zero emissions requires global collaboration between businesses, governments and citizens; more than ever, solving the climate crisis requires our global, collective and personal action.








[8] 140 countries have joined the “Net zero coalition”




[12] See the  Carbon pricing Dashboard of the World Bank:

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Disclaimer. Readers are informed that the views, thoughts, and opinions expressed in the text belong solely to the author, and not necessarily to the author's employer, organization, committee or other group the author might be associated with, nor to the Executive Secretariat of CIAT. The author is also responsible for the precision and accuracy of data and sources.

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