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Political attention has increasingly focused on limiting warming to 2êC. However, to date the only mitigation commitments accompanying this target are the so-called Copenhagen pledges, and these pledges appear to be inconsistent with the 2êC objective. Diverging opinions on whether this inconsistency can or should be resolved have been expressed. This paper clarifies the alternative assumptions underlying these diverging view points and explicits their implications. It first gives simple visualizations of the challenge posed by the 2êC target. It then proposes a decision tree, linking different beliefs on climate change, the achievability of different policies, and current international policy dynamics to various options to move forward on climate change.

This title is endorsed by Cambridge Assessment International Education to support the full syllabus for examination from 2020. Reinforce learning and deepen understanding of the key concepts covered in the latest syllabus; an ideal course companion or homework book for use throughout the course. - Develop and strengthen skills and knowledge with a wealth of additional exercises that perfectly supplement the Student's Book. - Build confidence with extra practice for each lesson to ensure that a topic is thoroughly understood before moving on. - Build a strong understanding of the main events of the course and the confidence to know how to use this knowledge. - Keep track of students' work with ready-to-go write-in exercises. - Save time with all answers available in the Online Teacher's Guide

Paper 1: San Francisco Peak: a plea to protect. This is a study done for the Plateau Sciences Society. It lists names of people (residing in the eastern part of Navajo-land) and their personal opinions. It gives an account on the importance the mountain ha

This thesis critically analyzes the H-2C temporary worker program (TWP) that was part of the 2006, Senate-approved Comprehensive Immigration Reform Act. Employer opinions and lessons from past U.S. TWPs are presented, resulting in recommendations for changing H-2C's design in order to maximize its potential as a core component of future immigration reform in the United States. The paper finds that small businesses, which comprise the majority of the businesses in the United States, and are among the heaviest users of foreign labor, consider the 2006 H-2C program to be unaffordable. Policy makers must redesign H- 2C to be affordable for small businesses while still offering an effective system for protecting domestic worker interests. The paper concludes that the best means to achieve both program affordability for small businesses and effectual domestic worker protections is likely a user -friendly, electronic program process

10 páginas.- 4 figuras.- referencias.-Data Availability Statement: All data underlying this article are available in the main publication and in its Supplementary Materials online. ; Unspecific peroxygenases (UPOs), the extracellular enzymes capable of oxygenating a potpourri of aliphatic and aromatic substrates with a peroxide as co-substrate, come out with a new reaction: carbon-chain shortening during the conversion of fatty acids with the well-known UPOs from Coprinopsis cinerea (rCciUPO) and Cyclocybe (Agrocybe) aegerita (AaeUPO). Although a pathway (Cα-oxidation) for shortening the hydrocarbon chain of saturated fatty acids has already been reported for the UPO from Marasmius rotula (MroUPO), it turned out that rCciUPO and AaeUPO shorten the chain length of both saturated and unsaturated fatty acids in a different way. Thus, the reaction sequence does not necessarily start at the Cα-carbon (adjacent to the carboxyl group), as in the case of MroUPO, but proceeds through the subterminal (ω-1 and ω-2) carbons of the chain via several oxygenations. This new type of shortening leads to the formation of a dicarboxylic fatty acid reduced in size by two carbon atoms in the first step, which can subsequently be further shortened, carbon by carbon, by the UPO Cα-oxidation mechanism. View Full-Text ; This research was funded by BioBased Industries Joint Undertaking under the European Union's Horizon 2020 Research and Innovation Programme, grant number 792063 (SusBind project; https://susbind.eu; to A.G., Á.T.M. and M.H.), the PID2020-118968RB-100 project by the Spanish MCIN/AEI/ 10.13039/501100011033 to A.G., and the CSIC projects PIE-202040E185 (to A.G.) and PIE-202120E019 (to Á.T.M.). ; Peer reviewed