Climate-related challenges are multiplying today, which is of concern to countries around the world. Many strategies are therefore deployed to contain the various negative ecological impacts as much as possible. Companies are therefore more committed to reducing their greenhouse gas emissions. They therefore realize […]
Category: Global warming
Global warming, climate change, the effect and greenhouse gases ...
Cities of the future, green cities?
In recent years, heat waves have been steadily increasing. This summer of 2022 is no exception, with temperatures exceeding 40 degrees in some cities in France. By 2050, some regions of the world could become uninhabitable, such as South Asia, the Persian Gulf and several […]
Energy saving certificates: how to benefit from them?
It was in 2005 that the French government created energy saving certificates to impose energy savings on bodies responsible for energy supply. These organizations then have the obligation to comply with these requirements to avoid paying substantial taxes. With climate change which continues to disrupt the planet, the […]
Climate: Geoengineering, when man tries to limit warming
Geoengineering (or Geoengineering) is the art (because it is more an art than a science now) of trying to modify the climate, it is not necessarily a new science (see the Arte report above ) but it is currently becoming increasingly important in order to limit global warming ... with or without the approval of the populations ... [...]
Converting CO2 (+ water + electricity) into ethanol fuel by "nano-spike" catalysis!
Nano-Spike catalysis; discovery of the Oak Ridge National Laboratory made a bit… by chance! The process makes it possible to obtain ethanol from CO2, electricity and water in the presence of a specific nano-catalyst called Nano-Spike. The announced yield on electricity is 60 to 70% which is acceptable on condition that renewable electricity is used (the process […]
Energy transition: Portugal powered for 4 days entirely with renewable electricity!
While France continues to bet (almost) everything on nuclear electricity… countries are currently breaking records for renewable electricity production! This month it's Portugal's turn to achieve a real tour de force of renewable energy! A few days after Germany produced so much renewable electricity that producers […]
Back on the Copenhagen conference
Review of Copenhagen by R.Guillet Rémi Guillet is an ECN Engineer (formerly ENSM), he graduated in 1966. He holds a doctorate in energy mechanics from the Univ. H. Poincaré Nancy 1 (2002) and has a DEA Economics Paris 13 (2001) Debate and analyzes: the non-summit of Copenhagen Fire 2009, and 2010 opens its “solar” cycle. […]
Gulf Stream, the Achilles heel of the climate
Documentary: Gulf Stream, the Achilles heel of climate Documentary produced by Nicolas KOUTSIKAS and Stephan POULLE (48 minutes) to watch here The Gulf Stream is a “giant” natural heat pump whose thermal power is equivalent to 1 reactors nuclear and the throughput 000 times that of all the rivers of […]
Electric Car: Zero Emission if not less!
An electric car emits CO2 and not just a little! This is the very honest confession of a Mitsubishi manager to France2 last week about the MiEV, the brand's latest electric car. The Mitsubishi MiEV is a 100% electric car which therefore emits, indirectly, taking into account only the manufacture of […]
Geothermal heat pumps and CO2
Geothermal energy: heat pumps and CO2, energy savings and CO2 emissions To our liking, geothermal energy is all too often presented as renewable and “green” energy. This article concerns surface geothermal energy, known as heat pumps, and not deep geothermal energy or the collection of deep heating networks which […]
Black Dossier renewable energy
Here is an answer to the black dossier of renewable energies published in Science et Vie in March 2008. Here is the debate about this dossier which is at the origin of the following article. Science et Vie March 2008: black dossier for green energies This dossier makes very positive judgments about the potential […]
Green Guide classification of mountain resorts
Green guide to alpine winter sports resorts Selective sorting, wastewater treatment, development, renewable energies, public transport or social actions… so many sustainable development alternatives that are emerging and that can be supported in the resort. Through the Green Guide for mountain resorts, the association wishes to encourage responsible mountain practices, also […]
Global CO2 emissions by source of activity
What are the CO2 emissions by source or sector of human activity in the world? Sources: IEA, IPCC and Jean-Marc Jancovici Depending on the source and the analysis used, we will see that the proportions vary enormously. Global CO2 emissions by business source Global CO2 emissions by business source including electricity and energy […]
CO2 emissions per capita per country
Here is a world map of CO2 emissions per capita and per country (click to enlarge) Source: Photographic documentation n ° 8053: Sustainable development. What geographic challenges? (authors: Yvette Veyret, Gérard Granier) More details: CO2 emissions per electric kWh in Europe and CO2 or GHG emissions per […]
Download: Castor, CO2 landfill project
Castor project, how to capture CO2? IFP summary document. It would currently be wiser to invest not in CO2 capture projects, which are economically difficult to pay off, but in the recovery of CO2, in particular through microalgae. Indeed; CO2 can be a resource for new generation biofuels. In […]
CO2 emissions per liter of fuel: petrol, diesel or LPG
What are the CO2 emissions depending on the fuel you use: gasoline, diesel (fuel oil) or LPG? In kg of CO2 per liter of fuel This page is the practical application and summary of the page on the combustion equations of alkanes, H2O and CO2 We invite the attentive reader to read this page to know […]
2013 the end of oil (Docu-fiction)
A very well produced fictional documentary to better understand the enormous influence of oil on our lives… Broadcast in November 2006. Find out more: - Forum petroleum and fossil fuels - Discuss this documentary
Carbon footprint of a ski resort, pollution from skiing!
What is the pollution of skiing and winter sports? Carbon footprint of a winter sports resort in the Alps. Detailed calculations of greenhouse gas emissions and of skiing Study carried out between May 2007 and September 2007 by the Mountain Riders Association on the Saint Martin de Belleville resort […]
Animation of the temperature of the Earth by NASA
Animation of the temperatures of the globe since 1884. One can see constant variations there but the last years are largely in the "red" ... Find out more: forum climate change and global warming Source Download the file (a newsletter subscription may be required): NASA Earth temperature animation
climate risks and threats of nuclear war
By Viktor Danilov-Danilian, Director of the Institute of Water Problems of the Russian Academy of Sciences, for RIA Novosti Climate change on our planet is becoming less and less predictable. The losses caused by abnormal heat waves, floods, droughts, hurricanes and tornadoes are constantly being calculated. According to the ministry […]
The global geoengineering
This article is the continuation of the article: Cooling the Earth to fight against global warming To learn more and discuss: cooling the earth against warming and climate change with global geoengineering: fiction or reality? Global geoengineering or climate manipulation on a planetary scale “The current climate policy seems […]
Cool Earth to fight against global warming?
Our planet Earth soon to be air-conditioned? by Joëlle Pénochet To find out more and discuss: cooling the earth against global warming and climate change with global geoengineering: fiction or reality? All the important studies published recently predict that climate change - announced more than thirty years ago by several official reports, personalities […]
Download: Report on Urban Transport: energy and organization
Technological Research Project carried out by Christophe Martz at ENSAIS and supported at the end of January 2001. This is a study on the congestion of urban centers and making an inventory of the different technological solutions that could improve air quality and traffic conditions in urban centers. Unanimous conclusion: the organization and behavior of […]
Global energy consumption
What is the global consumption of primary energy, its evolution since the beginning of the industrial era and the different sources of energy used by humanity? The answers to these 3 questions are in the graph below (click on the image to enlarge): Evolution of “commercial” energy consumption in millions of tonnes of oil equivalent. Sources: Schilling & […]
Meat, CO2 and greenhouse effect
QUESTION: How much does the piece of meat I have on my plate cost, in terms of greenhouse effect? ANSWER: According to Jean-Marc Jancovici, the kg of veal is equivalent to a car journey of 220 km! Suckling lamb: 180 km! The ox: 70 km! The pig: 30 km! Eat veal […]