Carbon dioxide is a major environmental problem, despite the efforts done by scientist in order to find new energy sources, most of them are not totally carbon free. Electric cars for instance, require the production of electricity. Not until a carbon free source is discovered will this problem be solved. Biogas as well as biomass could be considered as green options due to the fact that they to take advantage from waste. Nonetheless, the carbon footprint of these alternatives is not zero. Albeit, if a balance is consider vegetable sources consume more carbon dioxide during their life than the quantity produced when burned. It has been an important increase in the efficiency in addition to the circular economy impact provided by these recycled energy, albeit there are still some drawbacks to overcome. Capacity is a major issue since it is not possible to obtain all the energy required to move myriads of electric cars simply by photosynthetic sources. Additionally, in some places energy farming is substituting food resources for suitable vegetables used in gas production.

Undoubtedly, plant kingdom has a great potential as a source of materials, energy in addition to food. A circular economy is possible considering these goods. Nevertheless, it is not enough. In order to fulfil the energetic necessities of the humankind finding a major source able to substitute fossil fuels is capital. In this sense, conventional nuclear energy has many downsizes. First of all it depends on fuels which are finite. Not only does it generate waste but it is also really toxic for long periods. Finally, safety is a major issue due to the fact that nuclear plants have an extreme danger in case of accident. On the other hand, there is an alternative which can be named non-conventional nuclear energy. Currently, nuclear energy is obtained from fission reactions where heavy nucleuses are split into smaller ones, which are extremely toxic. Another possibility is fusion, where small non-toxic atoms are combined to obtain heavier ones. In a fusion reaction neither reactives nor products of the reaction are dangerous. Unfortunately, the temperature required to start this process is extremely high. Researchers around the world are carrying out experiments seeking to make these reactions viable. Finding the solution to this problem is a simple matter of time, once this is overcome, engineers must consider whether capital expenditures required to build these facilities are minor than the requirements of other sources of energy like solar power or wind.

France, a nation which relies on nuclear power as its main source of energy, has been working for years in order to create a viable fusion reactor. This country is currently cooperating with others in ITER, a promising project.

Creator of the image: Matt Groening