32 research outputs found

    Climate Risk and the Fossil Fuel Industry: Two Feet High and Rising

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    As climate change effects grow more pronounced, there can be little doubt that an industry that produces 68 percent of human greenhouse gas emissions will find itself under increasing pressure. The risks to the industry correlate with progress on climate goals. Unless a technological breakthrough can restrict carbon releases, the fortunes of the fossil fuel industry and the stability of Earth's climate will be locked in a zero-sum game. Climate's gain is the industry's loss and vice versa. For coal, the threats posed by climate action are already being felt. Coal's fortunes now rest with developing countries, where decisions to seek China-style, coal-led development will increasingly be met by international pressure to choose an alternate path

    Reflection and tunneling of ocean waves observed at a submarine canyon

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    Author Posting. Ā© American Geophysical Union, 2005. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Geophysical Research Letters 32 (2005): L10602, doi:10.1029/2005GL022834.Ocean surface gravity waves with periods between 20 and 200 s were observed to reflect from a steep-walled submarine canyon. Observations of pressure and velocity on each side of the canyon were decomposed into incident waves arriving from distant sources, waves reflected by the canyon, and waves transmitted across the canyon. The observed reflection is consistent with longwave theory, and distinguishes between cases of normal and oblique angles of incidence. As much as 60% of the energy of waves approaching the canyon normal to its axis was reflected, except for waves twice as long as the canyon width, which were transmitted across with no reflection. Although waves approaching the canyon at oblique angles cannot propagate over the canyon, total reflection was observed only at frequencies higher than 20 mHz, with lower frequency energy partially transmitted across, analogous to the quantum tunneling of a free particle through a classically impenetrable barrier.Funding was provided by the Office of Naval Research and the National Science Foundation

    Qatar ā€˜rises aboveā€™ its region: Geopolitics and the rejection of the GCC gas market

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    A curious imbalance afflicts energy markets in the Persian Gulf region. Five of the six Gulf monarchies exhibit shortages in domestic supply of natural gas, with two of them turning to market-priced imports of liquefied natural gas, mostly from outside the region. Meanwhile, the sixth Gulf monarchy, Qatar, holds the worldā€™s third-largest conventional reserves and is the planetā€™s number two gas exporter. Why is Qatar, given its enormous resources and relatively small domestic needs, unwilling to supply gas sufficient to meet its neighboursā€™ demand? After all, Qatar, like its neighbours on the Arabian Peninsula, is a member of the Gulf Cooperation Council, a monarchical bloc that links these six Sunni Muslim-led regimes through trade, customs and immigration treaties, even marriage ties. A currency union among the six is also planned. Surely it makes more economic sense for the five gas-short monarchies to import via pipeline from such a well-endowed regional ally, rather than enter the competitive global liquefied natural gas (LNG) market with its implications for higher prices on fuel and higher costs of transport? The answers to these questions ā€“ the theme that drives our research ā€“ flow from two broad categories: pricing and politics. Briefly, gas-short GCC states have historically been unwilling to pay what Qatar considered a reasonable price for its gas. In part because of this recalcitrance, Qatar has ā€œrisen aboveā€ the GCC market. It sought instead to export its gas as LNG to far-flung customers where it secured much higher prices on long-term bilateral contracts. Success in LNG has allowed Qatar to build an extraordinary level of global influence and improve its national security. It has done this by compiling links to powerful importing states that have become stakeholders in the security of continued Qatari supply. Qatarā€™s gains in revenue, political influence and security have reduced its dependence on regional markets. In the short to medium-term, Qatari supply appears unlikely to assuage unmet demand in neighbouring monarchies

    Reforming end-user energy prices could rationalize GCC energy demand

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    The six GCC economies ā€“ Saudi Arabia, the UAE, Oman, Kuwait, Qatar, and Bahrain ā€“ are some of the worldā€™s most profligate consumers of energy and emitters of greenhouse gases, relative to their size. Other hydrocarbon exporters in the region, notably Iran and Algeria, are beset by similar circumstances. Observers have attributed this state of affairs to the very low prices at which energy is sold in these countries. However, there have been few attempts to quantify the effects of subsidies on domestic consumption. This article takes a simplified approach to a complex topic by posing the following questions: What would happen if fuel and electricity prices in the Gulf monarchies were increased to world market levels? How would consumers respond? More specifically, would electricity demand in Abu Dhabi adjust to look more like that in unsubsidized, but otherwise similar, Arizona
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