The carbon budget represents the total amount of carbon dioxide (CO₂) and other greenhouse gases that can be released into the atmosphere to keep global warming below a certain temperature limit, such as 1.5°C or 2°C above pre-industrial levels, in line with the goals of the Paris Agreement.

📜 More detailed explanation:

• 🧾 Paris Agreement and temperature goals:
  In 2015, the international community adopted the Paris Agreement, committing to holding the increase in global average temperature to well below 2°C and pursuing efforts to limit it to 1.5°C above pre-industrial levels.

📐 Carbon budget calculation:

• Scientists, particularly from the Intergovernmental Panel on Climate Change (IPCC), have calculated the maximum amount of emissions that humanity can emit to stay within these temperature limits.
• For temperature limit 1.5 °C The IPCC estimates that from 2020 we can only emit around 400 gigatons of CO₂ (Gt CO₂) with a 66 % probability of not exceeding this limit.
• For the 2°C limit, the available budget is larger, approximately 1,150 Gt CO₂.

🌍 Current emissions:

• Annual global CO₂ emissions are around 40 Gt CO₂. If we continue at the current rate of emissions, the carbon budget for 1.5°C would be exhausted in ten years.

❗ Why is the carbon budget important?

1. 🎯 Provides a specific goal:

• A carbon budget allows governments, businesses and society to set clear and measurable targets for reducing emissions.

2. ⏳ Emphasizes urgency:

• It shows that time for effective action is limited, increasing the pressure to quickly adopt solutions to mitigate climate change.

3. 🛠️ Helps with planning:

• It serves as a tool for planning the transition to a low-carbon economy, including investments in renewable energy sources, energy efficiency and innovation.

4. 🤝 Encourages global collaboration:

• It emphasizes the need for international cooperation, as emissions know no borders and climate change is a global problem.

5. ⚖️ Fair redistribution:

• It opens a debate on fairness and responsibility between countries with different levels of historical emissions and abilities to contribute to solving the problem.

⚠️ Challenges associated with the carbon budget:

• ⛔ Rapid depletion: At current emissions levels, the carbon budget is shrinking rapidly, meaning that without fundamental changes, we may soon exceed safe limits.
• ❓ Uncertainties in estimates: The carbon budget is based on the best available scientific data, but there are uncertainties regarding climate sensitivity and the future behavior of ecological systems.
• ♻️ Necessary system changes: Meeting the carbon budget requires a fundamental transformation of energy, transport, industrial and agricultural systems.

The carbon budget is a key concept in the fight against climate change, as it provides a quantitative framework for how much more emissions we can still emit before we exceed critical temperature limits. Its importance lies in highlighting the urgent need for action and in motivating people to take effective measures to reduce greenhouse gas emissions. Adhering to the carbon budget is essential to ensure a sustainable future for our planet and for future generations. Spring