CO2
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Emissions of air pollutants have negative impacts on human health, food security and climate © EU, 2011 - Photo: B.Scheeren A scientific paper published today by Science shows that a limited number of air quality measures can substantially mitigate global warming and have significant benefits for human health and agriculture. Together with twelve partners from all over the world, including UNEP, NASA and the Stockholm Environment Institute, JRC scientists identified 14 emission control measures that can best help to limit global warming and improve health and food security in the coming decades.
Study co-authored by the JRC on climate change mitigation published in Science - News & events - JRC - European Commission
Le Royaume-Uni est désormais un terrain sûr, sur lequel bâtir des entreprises durables. Les secteurs naissants peuvent se développer ; ceux établis peuvent s'adapter. Notre économie sera mieux équilibrée - et nos consommateurs bénéficieront d'une énergie propre et sûre au moindre coût. Et pourtant, les idées reçues autour de la maîtrise du carbone vont bon train. « Ce n'est pas rentable », disent les sceptiques. « La croissance en souffrira et l'industrie sera ruinée. » « Ce n'est pas le moment. »
Emissions de CO2 : et si le Royaume-Uni montrait l'exemple ?
Australia's 500 biggest polluters will pay A$23 (US$24.6) per tonne of carbon emitted into the atmosphere from July next year. The country has one of the highest rates of greenhouse gas emissions per head of population in the developed world. The population of 22.6 million is responsible for around 1.3 per cent of the world's carbon dioxide emissions. By 2020, the new carbon tax plan should cut Australia's carbon emissions by 5 per cent, relative to 2000 levels. This adds up to around 159 million tonnes of carbon pollution – equivalent to removing 45 million cars from the road, according to the Australian government.
Australia is first nation to put a price on carbon - environment - 11 July 2011
Australia's shiny new carbon tax is an empty promise - environment - 11 July 2011
Australia's shiny new carbon tax, announced on Sunday , is unlikely to change the country's status as the largest per-capita emitter of greenhouse gases in the developed world. Loopholes threaten to undermine its modest promise to cut emissions by 5 per cent by 2020 . First, emissions from forestry, farming and cars are exempt from the tax. These are a significant omission. Some years, deforestation is responsible for as much as a quarter of Australia's emissions. Second, the biggest emitters are being protected.Frédéric Utzmann est Président de l’entreprise de conseil CertiNergy , spécialisée dans le dispositif des certificats d’ économies d’énergie (CEE). Dans une Tribune, il revient sur les actuels débats législatifs portant sur la mise en place d’un modèle européen de CEE. ——————————————————————————————————————— Frédéric Utzmann
CEE, un outil clé pour atteindre les objectifs européens d’économies d’énergie
CCS
Réduire l’impact carbone de l’industrie : au-delà de la seule efficacité énergétique
Sur la scène internationale, notamment suite à leur refus de ratifier le Protocole de Kyoto sous l’administration Bush, les États-Unis ont souvent hérité du rôle de « mauvais élève ». Pourtant localement de nombreux États se sont engagés à réduire leurs émissions, et des règlementations commencent à apparaitre au niveau fédéral (1). Vingt-trois États américains ont déjà une loi en vigueur imposant un objectif de réduction des émissions de GES avant une certaine date.BURYING carbon dioxide deep underground is an attractive solution to climate change, but keeping the gas from bubbling to the surface may prove difficult. Injecting nanoparticles into underground reservoirs before they are filled with CO2 could make any leaks self-sealing. When CO2 rises quickly through cracks in the bedrock, the highly pressurised gas behaves like a liquid and shears into droplets. Steven Bryant, an engineer at the University of Texas at Austin, says silica nanoparticles coated with polyethylene glycol would bind to the droplets, creating a viscous foam. This would plug leaks much like the inner coating on a self-sealing tyre does, he says.
Nano-foam could plug underground CO2 leaks - environment - 11 June 2011