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2025
The growth rate of greenhouse gas (GHG) climate forcing increased rapidly in the last 15 years to about 0.5 W/m2 per decade, as shown by the “colorful chart” for GHG climate forcing that we have been publishing for 25 years (Fig. 1).[1] The chart is not in IPCC reports, perhaps because it reveals inconvenient facts. Although growth of GHG climate forcing declined rapidly after the 1987 Montreal Protocol, other opportunities to decrease climate forcing were missed. If policymakers do not appreciate the significance of present data on changing climate forcings, we scientists must share the blame.
Qui dit PIB, dit consommation d’énergie : transport, construction, usines, etc. L'Union européenne importe massivement du pétrole, du gaz fossile, du charbon, de l’uranium et des panneaux photovoltaïques de pays plus ou moins fiables. Cette dépendance rend notre économie vulnérable.
Dans un contexte actuel de résistance des bactéries aux antibiotiques, la recherche d’alternatives bat son plein. En France, des scientifiques ont focalisé leur attention sur la phagothérapie, c’est à dire le recours à des virus bactériophages. Le fait est que cette méthode est loin d’être une nouveauté, puisque datant de la première moitié du XIXe siècle.
Gains in cutting deaths from tuberculosis at risk as health officials warn clinics forced to ration drugs and testing
Reports suggest the administration’s staffing cuts may be hampering its firefighting capabilities.
La géothermie évoque généralement la production de chaleur, mais elle peut également rafraîchir ou produire du froid. Et cela de manière beaucoup plus économe que les climatiseurs classiques et avec un impact écologique réduit. Non seulement il s’agit d’une solution bas carbone, mais elle ne rejette pas de chaleur dans l’air extérieur et ne contribue donc pas à l’effet d’îlot de chaleur urbain, à l’origine de la surchauffe des villes en période de canicule.
The Other Economy - Ressources bibliographiques et documentaires sur les enjeux économiques et écologiques
Le ministère en charge de l'Industrie a publié ce 25 juillet un plan(1) composé de sept « mesures concrètes pour accélérer le développement d’une énergie vertueuse » : la géothermie.
Identifying the socio-economic drivers behind greenhouse gas emissions is crucial to design mitigation policies. Existing studies predominantly analyze short-term CO2 emissions from fossil fuels, neglecting long-term trends and other GHGs. We examine the drivers of all greenhouse gas emissions between 1820–2050 globally and regionally. The Industrial Revolution triggered sustained emission growth worldwide—initially through fossil fuel use in industrialized economies but also as a result of agricultural expansion and deforestation. Globally, technological innovation and energy mix changes prevented 31 (17–42) Gt CO2e emissions over two centuries. Yet these gains were dwarfed by 81 (64–97) Gt CO2e resulting from economic expansion, with regional drivers diverging sharply: population growth dominated in Latin America and Sub-Saharan Africa, while rising affluence was the main driver of emissions elsewhere. Meeting climate targets now requires the carbon intensity of GDP to decline 3 times faster than the global
This paper analyses General Social Survey (United States) data and provides evidence that the advent of Facebook and other social media platforms has widened the gap in scepticism towards science between low-educated Americans and their more highly educated counterparts. The same trend holds true when considering distrust in medicine, the press and television. Overall, the results suggest that education may serve as a protective factor against the influence of fake news, disinformation and misinformation. Additionally, a heterogeneity analysis shows that the increase in distrust is particularly pronounced among young people. Further analyses reveal that political affiliation plays a role in shaping attitudes towards science and that the likelihood of voting for the Republican Party has increased among low-educated individuals. A comprehensive set of robustness and placebo tests supports the reliability of these findings.
