This book demystifies the models we use to simulate present and future climates, allowing readers to better understand how to use climate model results. In order to predict the future trajectory of the Earth's climate, climate-system simulation models are necessary. When and how do we trust climate model predictions? The book offers a framework for answering this question. It provides readers with a basic primer on climate and climate change, and offers non-technical explanations for how climate models are constructed, why they are uncertain, and what level of confidence we should place in them. It presents current results and the key uncertainties concerning them. Uncertainty is not a weakness but understanding uncertainty is a strength and a key part of using any model, including climate models. Case studies of how climate model output has been used and how it might be used in the future are provided. The ultimate goal of this book is to promote a better understanding of the structure and uncertainties of climate models among users, including scientists, engineers and policymakers.

This book demystifies the models we use to simulate present and future climates, allowing readers to better understand how to use climate model results. In order to predict the future trajectory of the Earth's climate, climate-system simulation models are necessary. When and how do we trust climate model predictions? The book offers a framework for answering this question. It provides readers with a basic primer on climate and climate change, and offers non-technical explanations for how climate models are constructed, why they are uncertain, and what level of confidence we should place in them. It presents current results and the key uncertainties concerning them. Uncertainty is not a weakness but understanding uncertainty is a strength and a key part of using any model, including climate models. Case studies of how climate model output has been used and how it might be used in the future are provided. The ultimate goal of this book is to promote a better understanding of the structure and uncertainties of climate models among users, including scientists, engineers and policymakers.

The 13th International Conference on Plant Growth Substances was held from the 17th to the 26th July, 1988 in Calgary, Alberta Canada under the auspices of the IPGSA (International Plant Growth Substances Association) and the University of Calgary. Over 550 participants from allover the world attended, along with 70 Associates and 25 University of Calgary graduate students who assisted in audiovisual presentations when not attending the scientific sessions. Fine weather prevailed, as was usual for summer on the eastern slopes of the Canadian Rockies, and participants arriving early visited the famous Calgary Stampede. A hosted buffet opened the Conference on Sunday evening. On Wednesday evening, following an afternoon field trip into the mountains of the Kananaskis Valley, the IPGSA traditional banquet became a western barbecue on Richards' Ghost River Ranch in the foothills of the Rockies, with folk and country and western music provided by the Great Western Orchestra. The fine Alberta weather continued through the weekend, and the Conference ended with a field trip to Sun shine Meadows, a World Heritage Site in Banff National Park.

The period of the "second slavery" was marked by geographic expansion of zones of slavery into the Upper US South, Cuba, and Brazil and chronological expansion into the industrial age.As The Reinvention of Atlantic Slavery shows, ambitious planters throughout the Greater Caribbean hired a transnational group of chemists, engineers, and other "plantation experts" to assist them in adapting industrial technologies to suit their "tropical" needs and increase profitability. Not only were technologies reinvented so as to keep manufacturing processes local but slaveholders' adaptation of new racial ideologies also shaped their particular usage of new machines. Finally, these businessmen forged a new set of relationships with one another in order to sidestep the financial dominance of Great Britain and the northeastern United States. In addition to promoting new forms of mechanization, the technical experts depended on the know-how of slaves alongside whom they worked. Bondspeople with industrial craft skills played key roles in the development of new production processes and technologies like sugar mills. While the very existence of such skilled slaves contradicted prevailing racial ideologies and allowed black people to wield power in their own interest, their contributions grew the slave economies of Cuba, Brazil, and the Upper South. Together reform-minded planters, technical experts, and enslaved people modernized sugar plantations in Louisiana and Cuba; brought together rural Virginia wheat planters and industrial flour-millers in Richmond with the coffee-planting system of southeastern Brazil; and enabled engineers and iron-makers in Virginia to collaborate with railroad and sugar entrepreneurs in Cuba. Through his examination of the creation of these industrial bodies of knowledge, Daniel B. Rood demonstrates the deepening dependence of the Atlantic economy on forced labor after a few revolutionary decades in which it seemed the institution of slavery might be destroyed. The reinvention of this plantation world in the 1840s and 1850s brought a renewed movement in the 1860s, especially from enslaved people themselves in the United States and Cuba, to end chattel slavery. This account of capitalism, technology, and slavery offers new perspectives on the nineteenth-century Americas.