25 February 2016, Climate News Network, Carbon budget is only half as big as thought. Fossil fuel use will have to fall twice as fast as predicted if global warming is to be kept within the 2°C limit agreed internationally as being the point of no return, researchers say. Climate scientists have bad news for governments, energy companies, motorists, passengers and citizens everywhere in the world: to contain global warming to the limits agreed by 195 nations in Paris last December, they will have to cut fossil fuel combustion at an even faster rate than anybody had predicted. Joeri Rogelj, research scholar at the International Institute for Applied Systems Analysis in Austria, and European and Canadian colleagues propose in Nature Climate Change that all previous estimates of the quantities of carbon dioxide that can be released into the atmosphere before the thermometer rises to potentially catastrophic levels are too generous. Instead of a range of permissible emissions estimates that ranged up to 2,390 billion tons from 2015 onwards, the very most humans could release would be 1,240 billion tons. Available levels In effect, that halves the levels of diesel and petrol available for petrol tanks, coal for power stations, and natural gas for central heating and cooking available to humankind before the global average temperature – already 1°C higher than it was at the start of the Industrial Revolution – reaches the notional 2°C mark long agreed internationally as being the point of no return for the planet. In fact, the UN Framework Convention on Climate Change summit in Paris agreed a target “well below” 2°C, in recognition of ominous projections − one of which was that, at such planetary temperatures, sea levels would rise high enough to submerge several small island states. The Nature Climate Change paper is a restatement of a problem that has been clear for decades. Carbon dioxide proportions in the atmosphere are linked to planetary surface temperatures and, as they rise, so does average temperature. For most of human history, these proportions oscillated around 280 parts per million. Read More here
Category Archives: Global Action Inaction
23 February 2016, Climate Home, A flying fairy tale: Why aviation carbon cuts won’t take off. Ten days ago the airline industry stunned the world. After years of prevarication the world’s top airlines and leading manufacturers said they would take climate change seriously. The UN’s aviation body, ICAO for short, announced a carbon emissions standard that would apply to new aircraft from 2020, and to all new deliveries of in-production aircraft – current types, or minor variations on current types – as from 2028. Aircraft that don’t meet the standard will not be allowed to be produced after 2028. None of the operational aircraft currently in the fleet will be affected. The statement was widely acclaimed, notably by the US government. But will it really have any significant impact on reducing emissions? Our contention is it will not, riddled as it is with flaws. It will not be a “rigorous and challenging” standard as industry claimed, nor will it save the 650 megatonnes of CO2 emissions by 2040 that the White House proudly proclaimed. ICAO and states shaped the standard around parochial national manufacturer interests instead of the need to mitigate climate change. Aircraft designers will still face many challenges developing the next generation of airliners, but this standard will not be one of them. Beyond business as usual? New generation aircraft are generally some 10-15% more fuel efficient than those they replace. They need to be to sell. This translates to an average annual efficiency improvement of between 0.5% and 1.0%. Constant market pressures result in a continuously improving line when you plot the average fuel consumption of new aircraft types against their entry into commercial service date. Yet ICAO intends to regulate this ever improving trend with a flat (time independent) carbon standard. Even if the stringency is initially set at a level that will have an impact, its effect will quickly fade over time as market-driven improvements cut in. The maximum theoretical effect of the standard at maximum stringencies is just 1 gigatonne of CO2 between 2020-2040, while total CO2 emissions from aviation over this period will be in the order of some 31 Gtonnes, i.e. a potential saving of just 3%. Read More here
8 February 2016, Climate Home, EU faces two-year wrangle to ratify Paris climate deal. The European Union faces months of internal wrangling before it can ratify the UN climate deal agreed in Paris last December. Brussels will take part in a signing ceremony to be hosted by Ban Ki-moon at UN headquarters in New York this April. But experts say it could take until late 2017 or 2018 to get the detail member states need to formally accept the agreement. And the 28-strong bloc’s leaders are showing little appetite for raising ambition during that time, despite Brussels backing a tougher global goal at the critical UN summit. At a panel event hosted by think tank Bruegel on Monday, climate and energy commissioner Miguel Arias Canete reeled off a long list of policies. “We will have to work very hard in 2016 to overcome the last hurdles of the agreement,” he said. “All signatories have to live up to their responsibilities and implement the agreed provisions.” What was not evident was any shift in strategy post-Paris. It was left to Hendrik Bourgeois of General Electric to point out that the EU’s 2030 climate targets were inconsistent with the Paris pact. At the UN summit, Canete boasted of helping to build a “high ambition coalition” between rich and poor nations. The resulting text promised to hold global warming “well below 2C” and “pursue efforts” for a 1.5C limit. The EU2030 package agreed in 2014 – emissions cuts of “at least” 40% from 1990 levels – was based on an earlier, less demanding 2C threshold. “Things will have to change and action will be necessary,” said Bourgeois. Read More here
7 February 2016, Reuters U.N. agency seeks to end rift on new aircraft emission rules. Europe and the United States tried to bridge differences over emissions standards for aircraft on Sunday as global aviation leaders prepared to adopt new rules that could affect Boeing Co and Airbus Group’s production of the largest jetliners and freighters. Proposals being debated in Montreal by the International Civil Aviation Organization (ICAO), the United Nations’ aviation agency, would force makers of the world’s largest passenger jets to upgrade or stop producing certain models as early as 2023, according to sources close to the negotiations and documents seen by Reuters. U.S. and European negotiators are trying to come up with the world’s first carbon dioxide emissions standards for aircraft as part of the industry’s contribution to efforts to combat climate change. Aviation was not included in the global climate deal agreed by a UN conference in Paris in December, but ICAO is trying to nail down the first of its two-part strategy as soon as Monday after six years of talks. It is due to finalize a market-based mechanism for all airlines later this year. Differences remain on where to place the bar on efficiency, with the United States and Canada pushing for more stringent targets than the European Union, while environmental groups have accused Europe of dragging its feet. “The CO2 standard will push industry to be as fuel-efficient as possible in all market conditions to reduce GHG (greenhouse gas) emissions and the impact of aviation on climate change,” stated the Canadian paper presented at ICAO last week. Read More here