Archives de catégorie : press and newspapers

La voiture à hydrogène est un miroir aux alouettes de la transition énergétique

by Olivier Daniélo, 2 avril 2019 in Reporterre


Il y a urgence à agir pour réduire les émissions de CO2. La marche et le vélo sont certes préférables à la voiture particulière. Mais parmi les différents types de voitures, quelle est la solution la plus efficace pour réduire les émissions de CO2 ?

Il existe un indicateur particulièrement intéressant pour tenter d’y répondre : la quantité d’énergie consommée pour réaliser par exemple 200.000 kilomètres. Energie non seulement pour propulser la voiture, mais aussi pour fabriquer la voiture elle-même et extraire dans les mines les matières premières nécessaires. Le bilan carbone est bien entendu corrélé au bilan énergétique. Les experts du groupe Volkswagen (VW) ont fait le calcul et ont présenté les résultats le 12 mars 2019 à l’occasion de la conférence de presse annuelle de ce mastodonte dont les décisions influencent l’industrie automobile mondiale.

 

 

 

Verdict : la voiture aux carburants synthétiques (eFuel et eCNG) consomme trois fois plus d’énergie primaire que la voiture électrique. Et celle à l’hydrogène, 1,7 fois plus. Ces 70 % supplémentaires représentent un impact à la fois économique et carbonique. La fabrication de la pile à combustible et du réservoir capable de résister à une pression de 700 atmosphères est énergivore. La voiture à hydrogène la plus vendue au monde (quelques milliers d’exemplaires) pèse 1.850 kg, soit 3 kilos de plus que la Tesla Model 3 Long Range (100 % batterie), qui a la même autonomie. Mais, c’est surtout le mauvais rendement de la chaîne hydrogène qui plombe le bilan global.

China boosts coal mining capacity despite climate pledges

by M. Xu  & D. Patton, March 26, 2019 in Reuters


BEIJING (Reuters) – China added 194 million tonnes of coal mining capacity in 2018, data from the energy bureau showed on Tuesday, despite vows to eliminate excess capacity in the sector and to reduce fossil fuel consumption.

Total coal mining capacity in the country was at 3.53 billion tonnes per year by the end of 2018, according to a statement from the National Energy Administration (NEA). That compares to 3.34 billion tonnes at the end of 2017.

Summit leak reveals EU rift on climate change

by Frédéric Simon, March 21, 2019 in Euractiv


Confidential documents prepared in advance of a two-day EU summit in Brussels have exposed an East-West divide in Europe on climate change, with Germany siding with Poland, Hungary and the Czech Republic in their refusal to commit to climate neutrality by 2050.

The leaked documents, seen by EURACTIV, show the amendments proposed by each country in preparation for the final statement of the leaders summit that opens in Brussels on Thursday (21 March).

And when it comes to climate action, the papers reveal a growing rift between two distinct groups of countries.

On the one hand, France, the Netherlands, Luxembourg, Spain, Portugal, Finland, Sweden and Denmark have all backed a European Commission plan to decarbonise the EU by 2050, linking it specifically to the Paris Agreement objective of keeping global warming below 1.5°C.

A French proposal, for instance, underlines that Europe should strive for climate neutrality “by 2050, in line with the 1.5 degree objective of the Paris Agreement”.

It then calls on EU member states “to prepare a discussion in the European Council in June to define the announcements of the EU at the September Climate Summit in New York”. Both amendments were rejected in the final draft.

On the other hand, Germany, Poland, Hungary and the Czech Republic have refused to specifically link EU climate action with the 1.5°C objective. They also oppose any time-bound commitment to the EU’s climate neutrality objective, deleting any reference to 2050 for reaching that goal.

Climate Science’s Myth-Buster

by Guy Sorman, March 2019 in CityJournal


We’ve all come across the images of polar bears drifting on ice floes: emblematic victims of the global warming that’s melting the polar ice caps, symbols of the threat to the earth posed by our ceaseless energy production—above all, the carbon dioxide that factories and automobiles emit. We hear louder and louder demands to impose limits, to change our wasteful ways, so as to save not only the bears but also the planet and ourselves.

In political discourse and in the media, major storms and floods typically get presented as signs of impending doom, accompanied by invocations to the environment and calls to respect Mother Nature. Only catastrophes seem to grab our attention, though, and it’s rarely mentioned that warming would also bring some benefits, such as expanded production of grains in previously frozen regions of Canada and Russia. Nor do we hear that people die more often of cold weather than of hot weather. Isolated voices criticize the alarm over global warming, considering it a pseudoscientific thesis, the true aim of which is to thwart economic modernization and free-market growth and to extend the power of states over individual choices.

Not being a climatologist myself, I’ve always had trouble deciding between these arguments. And then I met Judith Curry at her home in Reno, Nevada. Curry is a true climatologist …

Une Belgique trop ambitieuse sur le climat

by Prof. Samuel Furfari, 6 mars 2019 in L’Echo


En Belgique francophone, l’intérêt pour la question climatique ne cesse de croître. A la faveur du succès remporté par les écolos aux élections communales d’octobre dernier, les partis francophones se sont lancés dans une surenchère de promesses. A cela viennent se greffer les marches pro-environnement enthousiastes mais néanmoins naïves de lycéens qui, en matière d’énergie et de climat, connaissent très peu de choses. Avec un peu plus de connaissances, ils demanderaient des fenêtres hermétiques et à double vitrage dans leurs classes, au lieu de panneaux photovoltaïques, on y reviendra. En quelques jours on est passé d’un gouvernement critiqué pour être timide à une proposition de loi climat qui n’a pas d’équivalent dans le reste du monde. Car ne nous y trompons pas, la frénésie climatique est belge. Même si on ne devrait pas être étonné que Trump n’ait pas prononcé le mot climat dans son récent discours de l’Union, ce que j’observe professionnellement dans le monde ne correspond en rien à ce que vit la Belgique. Il y a lieu de s’interroger sur les motifs réels de ce déferlement ; ce n’est pas audible pour l’instant mais on devra y répondre un jour.

 

ExxonMobil announces 5-8t cubic feet of gas off Cyprus (Update2)

by Georges Psyllides, February 28, 2019 in CyprusMail


Cyprus and ExxonMobil on Thursday announced a gas find estimated between 5-8 trillion cubic feet (tcf) in an offshore field inside the island’s exclusive economic zone.

The discovery was made in the Glafcos (Glaucus) 1 well in Block 10 of the EEZ.

“Based on preliminary interpretation of the well data, the discovery could represent an in-place natural gas resource of approximately 5 trillion to 8 trillion cubic feet (142 billion to 227 billion cubic metres). Further analysis in the coming months will be required to better determine the resource potential,” the company said in a statement.

New York Times hit with backlash for labeling Princeton physicist a ‘climate denialist’

by Valerie Richardson, February 21, 2019 in TheWsahingtonPost


Princeton professor emeritus William Happer’s role in forming a White House climate security committee didn’t sit well with a number of media outlets, including The New York Times, which called the eminent physicist a “denialist.”

The headline prompted a backlash from those who object to applying a derogatory label associated with Holocaust disbelief to scientists and others who challenge worst-case climate-change scenarios.

Key Democratic Lawmakers Skeptical of Carbon Tax

by P. Hirschfeld, January 15 2019 in VPRNews


A growing number of climate advocates say increasing the price of fossil fuels is the surest way to reduce greenhouse gas emissions, but leaders in the House and Senate are resisting calls for a carbon tax in Vermont.

During the last two legislative sessions, lawmakers introduced several bills that would have assessed a new tax on carbon-emitting fossil fuels. Last week, on the opening day of the legislative session, 40 or so people rallied in the Statehouse cafeteria against a carbon tax.

Why all you’ve been told about these polar bears could be WRONG

by David Rose, December 30, 2018 in DailyMail


Animals driven to the edge of their natural habitat by shrinking ice have become one of the defining images of climate change, but Inuits who know the predators have a very different story
  • Aaron Gibbons, 31, was mauled to death by a polar bear earlier this year 
  • Inuit leaders want to be allowed to increase the amount of bears they kill
  • Climate change activists say bears are in decline, due to global warming
  • But locals say polar bears are adapting and are perfectly able to breed

Going Nowhere Fast on Climate, Year After Year

by Paul Bledsoe, December 2018 in TheNewYorkTimes


Three decades after a top climate scientist warned Congress of the dangers of global warming, greenhouse gas emissions keep rising and so do global temperatures.

Thirty years ago, a NASA scientist, James Hansen, told lawmakers at a Senate hearing that “global warming is now large enough that we can ascribe with a high degree of confidence a cause-and-effect relationship with the greenhouse effect.” He added that there “is only 1 percent chance of accidental warming of this magnitude.”

By that, he meant that humans were responsible.

His testimony made headlines around the United States and the world. But in the time since, greenhouse gas emissions, the global temperature average and cost of climate-related heat, wildfires, droughts, flooding and hurricanes have continued to rise.

Truth is the First Casualty of Global Warming

by Bjorn Lomborg, December 18, 2018 in ProjectSyndicate


The truth about climate change is nuanced: it is real, and in the long term it will be a problem, but its impact is less than we might believe. And yet we are too eager to believe the problem is far worse than science shows, and – conversely – that our solutions are far easier than reality dictates.

BRUSSELS – The latest global climate summit in Poland has generated familiar predictions of doom and disaster from environmental activists. Climate change seems to freeze our capacity for critical thinking: we are too eager to believe the problem is far worse than science shows, and – conversely – that our solutions are far easier than reality dictates.

‘Glimmer Of Hope’ For Great Barrier Reef As Study Shows Tolerance To Climate Change

by Nick Visser, December 10, 2018 in Huffpost


Last year’s oceanic heat wave wasn’t as destructive as one the year before, scientists said.

The Great Barrier Reef fared better during an oceanic heat wave last year than during sizzling weather a year earlier that caused hundreds of miles of corals to bleach, according to a study published Monday that suggests the massive structure may be growing more tolerant to climate change.

The report in the journal Nature Climate Change analyzed how corals along the Great Barrier fared in back-to-back mass bleaching events. The reef ― a UNESCO World Heritage Site and the largest living structure on the planet ― was cooked by overheated seawater in 2016 and again in 2017, with images of sickly white coral horrifying people around the globe.

See also here

Germany heads to COP24 without coal-exit plan

by Julian Wettengel, November 28, 2018 in Euractiv


Germany’s task force on planning the definite phase-out of coal-fired power production has scrapped plans to present a decision before the end of this year.

Several days after three eastern German federal states had demanded better and more detailed plans to support coal mining regions, the so-called coal commission has decided to “conclude its work on 1 February 2019”.

The task force set up a working group from its ranks to draw up further concrete proposals for coal regions and to hold talks on these with both the federal and state governments, the commission said in a press release.

COLDEST THANKSGIVING IN 100 YEARS: NEW YORK CITY’S MACY’S PARADE COULD SET RECORDS UNDER ARCTIC CHILL

by Mo Mozuch, November 22, 2018 in Newsweek


Talk about cold turkey! The coldest Thanksgiving in 100 years, and quite possibly the coldest Thanksgiving ever, has hit the Northeast United States today.

The unprecedented cold snap comes courtesy of a large Canadian chill working its way across the country on its way to the Atlantic. According to the Weather Network, the deep freeze is the result of a large, low pressure system moving south from the Arctic across the Great Lakes. Combine that with a wicked wind chill, and many Americans are looking at the coldest Thanksgiving in a century.

Nunavut Draft Plan Says There Are Actually Too Many Polar Bears In Territory

by Bob Weber, November 12,  2018, updated, in HuffingtonPost


There are too many polar bears in parts of Nunavut and climate change hasn’t yet affected any of them, says a draft management plan from the territorial government that contradicts much of conventional scientific thinking.

The proposed plan — which is to go to public hearings in Iqaluit on Tuesday — says that growing bear numbers are increasingly jeopardizing public safety and it’s time Inuit knowledge drove management policy.

“Inuit believe there are now so many bears that public safety has become a major concern,” says the document, the result of four years of study and public consultation.

A male polar bear eats a piece of whale meat as it walks along the shore of Hudson Bay near Churchill, Man., on August 23, 2010. New research suggests an answer to the mystery of how polar bears survived previous eras of low sea ice. THE CANADIAN PRESS/Sean Kilpatrick
THE CANADIAN PRESS
A draft plan from the Nunavut government says growing bear numbers are increasingly jeopardizing public safety.