Climate Q&A

Yes, there is a consensus. Consensus does not necessarily mean unanimity, but rather convergence on the climate situation of our planet. Perhaps not on television, but among the community of scientific experts working on climate, there is a consensus and has been for a long time.

The alert is given.

The UN body, the IPCC (Intergovernmental Panel on Climate Change) is dedicated to the issue of climate change. Their mission is not to replace yet another research laboratory, but to synthesize the work of scientists from around the world. Their flagship report: some 3949 pages here. This same report is summarized for decision makers: 42 pages here.

What conclusions?

The IPCC does not give an opinion but general conclusions. There is nothing to worry about for the Planet, it will recover. Our species and its 8 billion people, our lifestyles and our comfort… that is another story. Three essential conclusions:

  • Yes, it’s going up: the CO2 content was once as high as today, and even much higher on the scale of the 4.5 billion years of our planet. But certainly not on the scale of the 300.000 years of life of our species.
Graphique montrant l'évolution de la concentration de CO2 au cours du temps (en très forte hausse depuis l'ère industrielle)
  • Is it just me or is it getting hotter?
    CO2 concentration has never been higher and is causing climate change.
Crédit : Professor Ed Hawkins (University of Reading)
  • And yes, this increase is mainly due to human activities: Bloomberg relays this data, experience it here.
Graphique montrant l'évolution de la température au cours du temps
Graphique montrant l'évolution de la température due à la pollution de l'ozone au cours du temps
Graphique montrant l'évolution de la température due aux gaz à effet de serre au cours du temps
Graphique montrant l'évolution de la température (tous facteurs cumulés) au cours du temps

We should all agree, right?

Still 40%* of the French think that the impact of the greenhouse effect is still a hypothesis on which scientists have not reached a consensus. At Caristeo, we deploy tools and adapted postures to accompany a better understanding of the stakes.

Sources :
*Ademe report, 20th report on the social representations of climate change
IPCC website

By 2030, each of us will have to divide our footprint by two and then by six in order to reach carbon neutrality by 2050. The challenge is immense, systemic and therefore does not depend solely on the individual.

Going beyond the triangle of inaction

Who has not been tempted to ignore his own share of responsibility, to justify his own inaction by pointing the finger at those responsible… Everyone can also be easily overwhelmed by questions.

Credit: Pierre Peyretou

The only question that matters is: how can I do my part?

There is individual action and the role of each person in the company. How many decision-makers feel, often rightly, incompetent on the subject and let the years go by without taking into consideration any action related to the climate.

Within Caristeo, we develop methods and tools to take action and to accompany necessary and thus ambitious transformations.
We accompany you in the essential mastery of the knowledge base.
We identify your company’s positioning in relation to climate issues.
We project with you in a low-carbon world.

It only takes 10% of employees to transform the company, according to the Harvard Business Review. => 10% to be trained to accompany a deep change!

The +2°C limit is the result of the political decision of the 2015 Paris agreements, and brings 195 nations together around the goal of containing climate change. Is it in itself ambitious enough to limit the risks of climate change? Unfortunately, no.

It is absolutely essential to stay below +2°C because beyond that, the climate situation is considered “out of control”…

The release into the atmosphere of methane, a greenhouse gas more powerful than carbon dioxide, would occur as a result of the accelerated melting of part of the permafrost, those millions of square kilometers of frozen ground.

We are already at 1.1 degrees of warming.

The current “business as usual” scenario is leading us towards a warming trajectory well above 2°C by 2100. It is the challenge of the current decade to return to the blue trajectory, which is the only one compatible with ensuring acceptable living conditions for our children.

Graphique montrant l'évolution de la température depuis 1850 en fonction des évolutions des émissions de CO2 cumulées
Figure SPM.10: Near-linear relationship between cumulative CO2 emissions and the increase in global surface temperature. – p.32 – IPCC 6th Assessment Report, Summary for Policymakers 2021