More than 70 countries have joined together to pledge to become carbon neutral by 2030, but how can this be achieved, and what would a world that relies solely on renewable energy look like?

The problem

Carbon dioxide is found in soft drinks, is part of the compounds present in fire extinguishers, is used as a refrigerant, is used to form laser beams, and is even used as a contrast agent in medical examinations. It is an abundant gas on the planet; plants need it for photosynthesis.

The solution

However, despite being naturally present on the planet and being so useful to us, it is a gas that retains heat and, together with others such as methane, contributes to form a layer in the atmosphere that prevents it from escaping and increases the temperature of the Earth's surface, causing climate change.

We are not waiting until 2050 to act. If we don't act today, we won't achieve the goals in 2050.”