About 200 top scientists From all over the world they are drawing a dramatic appeal to political leaders, emphasizing potentially destructive risks that threaten humanity because of climate change. This appeal, in view of the UN Critical Conference on Climate Change, which will take place in Brazil, Brazil next November, highlights the urgent character of immediate measures to limit the dangerous rise of global temperature.

Experts warn that the average temperature of the planet It is expected to exceed the critical limit of 1.5 ° C soon compared to the pre -industrial era. This could trigger a critical chain ‘Turning points’ (Tipping Points), overturning balances and exposing billions of people to serious dangers – starting the mass extinction of tropical coral reefs.

The already recorded effects are indicative. Tropical reefs, a source of life for hundreds of millions of people, are destroyed at unprecedented pace. Existing heating of the planet has already caused irreversible changes, and its further further increase is dramatically intensifying the risk of critical ecosystems.

European and global risks by collapse of ocean currents

A typical example is the collapse of the formation of deep water in the Labrador-Siminger seas, which is already causing steep climate changes and threatens nutritional and water safety in northwestern Europe and West Africa. Particular concern is caused by possible traffic termination Atlantic Meridional Overturning Circulation (AMOC)of a system that regulates the global climate. Its possible collapse will bring about heavy and prolonged winters in Europe, while significantly undermining nutritional and water safety internationally.

At the same time “Lung” on the planetthe Amazon forest is in danger of disappearing due to deforestation and climate crisis.

The confrontation window narrows

As stated in the international appeal, the “window of preventing” chain, irreversible changes in the global climate closes rapidly. Is required immediate global action and important decisions in the forthcoming COP30.

At stake is primarily a matter human rightsHealth of the planet and – ultimately – of humanity’s survival, as scientists point out.

Key recommendations to limit emissions

Necessary term to avoid overcoming critical turning point It is the minimization of the intensity and duration of the thermal jump above 1.5 ° C. In order to achieve this, the Global greenhouse gas emissions Restricted by 2030 to half of 2010 levels, requiring unprecedented acceleration of rejections.

Existing national targets (Nationally Determined Contributions, NDCS), even if they are respected, will reduce heating to only 2.1 ° C, which makes it necessary to urgently review them within the September deadline.

The measures proposed by scientists include the future ban on the sale of diesel cars and trucks, the ban on gas boosts, as well as increased investment in emerging technologies (hydrogengreen ammonia, green steel).

In addition, priority is given to the conversion of agri -food systems: commercial policies that enhance sustainable production and turn from livestock to vegetable proteins are considered necessary. Thus, deforestation emissions can also be reduced, while enhancing biodiversity and releasing territories for nature rebirth.

The safeguarding of the rights of indigenous peoples and the fair assessment of the value of nature to achieve the goals of the Kunming-Montreal framework is crucial.

Challenges and international resistors

Scientists, however, warn that despite the proliferation of warnings, real progress remains inadequate, with the multinational lobby blocking any meaningful reform. A typical example is the debate on the necessary reduction in the production and use of plastics, where strong interests prevent reform initiatives. Similarly, in the battle of climate change, huge sums are spent to maintain doubts, against the undesirable scientific data and the living experience.

An additional problem focuses on the fact that the proposed solutions, for the most part, are “techniques” – that is, they focus on the mechanisms of improving efficiency, without calling for the current economic and social background. As it turns out, * perhaps * this model is no longer enough.

At the same time, the expressed concerns of climate scientists are increasing, who, although trying not to discourage the public, admit that they are possessed by increasing pessimism. How can this not happen when, in parallel with the climate crisis, there is a rise of conflict and escalation of world military spending?

Today, many declare that one is required “miracle” – A quick quality jump in the world consciousness, in order to prevent the worst and to save its human species and culture. This is the stake, nothing less.

Dimitris Konstantakopoulos is a journalist. The texts published in the column ‘Ideas and opinions’