What does the latest IPCC report say?

Que dit le dernier rapport du GIEC ?

On August 9, 2021the Intergovernmental Panel on Climate Change published the first part of its 6th version. An alarming report on future developments in terms of climate change.
On February 28, the second part of the report was published. This part takes into account the importance of social justice in climate change.

What are the consequences of global warming for the planet and its populations?

Indeed, climate change induces societal evolutions. In all regions of the world, it is the most vulnerable people and systems that will suffer the direct consequences.
Among the current effects of global warming we find :

  • A reduction in the availability of water and food resources (especially in Africa and Asia)
  • An impact on health in all regions of the world, such as increased mortality, emergence and development of new diseases. But also an increase in heat stress and a decrease in air quality
  • The reduction of the distribution areas of animal and plant species by half

These are irreparable effects, which are aggravated by poverty or limited access to services.
By 2050, 1 billion people could be living in coastal areas threatened by rising sea levels. Increased heat waves, droughts and floods have already exceeded tolerance thresholds, resulting in mass mortality of species.
Some populations will have to migrate because entire regions will be uninhabitable due to increased weather and climate phenomena.
Fundamental figures: about 3.3 to 3.6 billion people, i.e. almost half of humanity, live in contexts that are highly vulnerable to climate change.
We are talking in particular about women, children, the elderly, indigenous populations, but also low-income households and more generally socially marginalized groups in the most vulnerable areas of the world.

What are the solutions to fight against the effects of global warming?

Obviously, the degree of vulnerability of systems is not the same in different geographical areas, even within regions. This second part of the IPCC report has highlighted the fact that colonialism still has consequences for certain populations today.
With the publication of the first part of the sixth report in August 2021, we were certain that climate change is the result of human activity. This is the first report that took into account tipping points (otherwise known as points of no return). That is to say, a threshold that, if exceeded, will be responsible for major changes in the climate. This is also known as the runaway phenomenon.
In this section, the report highlights the fact that beyond 1.5°C of warming, climate change will have irreversible impacts (particularly on biodiversity). The rate of change and the associated risks depend on short-term mitigation and adaptation measures. Actions taken in the short term will be able to limit losses and damages but will not be able to avoid them all. The IPCC stresses that solutions exist to counter this catastrophic scenario, but that they require systemic transformation. Without change, it will be impossible to adapt.
These changes will not happen without social justice and inclusive development.

In April 2022, the IPCC will publish the third part of the sixth report. This third part should focus on solutions to reduce greenhouse gas emissions.

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