本文研究了在燃气电厂部署碳捕集与封存(CCS)的经济性，同时涵盖了其整个价值链，即碳捕集、运输和封存，并进行了彻底的敏感性情景分析。我们的分析表明，根据天然气价格的不同，采用CCS意味着新建和改造电厂的二氧化碳捕集成本在每吨86美元到130美元之间

中东和北非（MENA）的跨订单电力交易可以提供成本和环境效益。然而，由于历史原因，该地区的电力交易尚未达到成熟阶段。基于一个定制的经济调度模型…

绿色转型可能会颠覆脆弱的供应链，使其免受成本竞争的影响，有利于建立战略伙伴关系，从而实现外包和自主采购。

近年来，可再生能源发电的成本大幅下降，与传统发电厂相比具有成本竞争力。然而，将风能和太阳能光伏发电（PV）等可变可再生能源（VRE）技术纳入电力系统…

在解决可持续发展问题时，对“新商业模式”的呼声越来越高。这些模式将决定公司如何在当前提取、制造、使用和处置的线性生产模式带来的资源限制和环境影响的世界中生存和发展。与其改变这种模式，不如维持。。。

The fire that tragically killed seven people in a historic building in Old Montreal, Quebec, on March 16 again focused critical attention on Airbnb’s operations. According to reports, several units in the building had been marketed through the service, in contravention of a 2018 municipal ordinance banning short-term rentals in that part of the city.,An investigation into the fire’s cause continues. However, questions should be asked about whether provincial and city authorities could have done more to detect and address any safety problems, as well as about any role played by Airbnb. In the meantime, the case raises broader questions about how governments should regulate data companies so that their treatment is not substantially different from their analog counterparts (consider Airbnb and hotels, or Uber and taxis). Further, as these companies operate by commodifying data, often from the public realm, governments need to consider what the loss of public control over now-private data sets may have on public regulatory activities and policy making.,Of course, unscrupulous landlords existed prior to Airbnb, as did unsafe housing. By design, however, Airbnb withholds data essential to city officials, because the company’s business model prioritizes the extraction and monetization of housing data, which it does not share. Airbnb also styles itself as a “platform,” strategically separating itself from its analog counterparts in the hotel industry.,The problem of governments struggling to effectively enforce rules predates data companies. The complicating factor for Montreal, indeed cities everywhere, is that Airbnb withholds data that cities need to enforce existing policies and craft new policies. This finding is echoed in multiple academic studies of Airbnb, including by legal scholar Teresa Scassa and urban scholar Geoff Boeing and colleagues.,The public might reasonably expect that cities have all the data they need to regulate a sector as important as housing. It isn’t so. City regulators can be stymied in their ability to detect illegal listings because Airbnb listings do not include addresses or the volume of activity. While omitting addresses may be designed to protect the privacy and safety of hosts, it does not enable effective regulation, a critique Montreal Mayor Valérie Plante levelled against Airbnb following the fire.,I examine how cities are on the front lines of battles with data companies like Airbnb and Uber in a forthcoming book, co-authored with Brock University’s Blayne Haggart: The New Knowledge: Information, Data and the Remaking of Global Power. Data companies can impede governance by cities when they withhold data critical to regulating core public services and public planning. It’s a practice that causes “data deficits,” to use Teresa Scassa’s term. Some cities, such as Vancouver and San Francisco, have resorted to legal action to compel access to privately held data. But suing companies for data essential to cities’ planning and regulatory duties is costly, time-consuming and unfeasible in the long term, not to mention a waste of resources.

万亿棵树：美国挑战赛呼吁应对森林威胁的生态企业家提交他们的创新解决方案和商业模式。