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"Turner, Andrew"
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The Republican reversal : conservatives and the environment from Nixon to Trump
Not long ago, Republicans could take pride in their party's tradition of environmental leadership. In the late 1960s and early 1970s, the GOP helped to create the Environmental Protection Agency, extend the Clean Air Act, and protect endangered species. Today, as Republicans denounce climate change as a \"hoax\" and seek to dismantle the environmental regulatory state they worked to build, we are left to wonder: What happened? In The Republican Reversal, James Morton Turner and Andrew C. Isenberg show that the party's transformation began in the late 1970s, with the emergence of a new alliance of pro-business, libertarian, and anti-federalist voters. This coalition came about through a concerted effort by politicians and business leaders, abetted by intellectuals and policy experts, to link the commercial interests of big corporate donors with states'-rights activism and Main Street regulatory distrust. Fiscal conservatives embraced cost-benefit analysis to counter earlier models of environmental policy making, and business tycoons funded think tanks to denounce federal environmental regulation as economically harmful, constitutionally suspect, and unchristian, thereby appealing to evangelical views of man's God-given dominion of the Earth. As Turner and Isenberg make clear, the conservative abdication of environmental concern stands out as one of the most profound turnabouts in modern American political history, critical to our understanding of the GOP's modern success. The Republican reversal on the environment is emblematic of an unwavering faith in the market, skepticism of scientific and technocratic elites, and belief in American exceptionalism that have become the party's distinguishing characteristics.-- Provided by publishe
Book
Climate change and the South Asian summer monsoon
More than one billion people live in regions affected by the South Asian summer monsoon. This Review provides an overview of our understanding of summer monsoon rainfall variability and its causes, and considers how the monsoon will change as a consequence of global warming.
The vagaries of South Asian summer monsoon rainfall on short and long timescales impact the lives of more than one billion people. Understanding how the monsoon will change in the face of global warming is a challenge for climate science, not least because our state-of-the-art general circulation models still have difficulty simulating the regional distribution of monsoon rainfall. However, we are beginning to understand more about processes driving the monsoon, its seasonal cycle and modes of variability. This gives us the hope that we can build better models and ultimately reduce the uncertainty in our projections of future monsoon rainfall.
Journal Article
Atmosphere : the seven elements of great design / James Michael Howard ; written with Andrew Sessa ; foreword by Newell Turner
Howard defines each of the seven elements of great design (style, scale & proportion, rhythm, light, color, texture, and sound) and how all the elements can work together to create an exciting as well as calming atmosphere.
Book
Generic matter representations in 6D supergravity theories
A
bstract
In six-dimensional supergravity, there is a natural sense in which matter lying in certain representations of the gauge group is “generic,” in that other “exotic” matter representations require more fine tuning. From considerations of the dimensionality of the moduli space and anomaly cancellation conditions, we find that the generic sets of matter representations are well-defined for 6D supergravity theories with gauge groups containing arbitrary numbers of nonabelian factors and U(1) factors. These generic matter representations also match with those that arise in the most generic F-theory constructions, both in 6D and in 4D, with non-generic matter representations requiring more exotic singularity types. The analysis of generic versus exotic matter illuminates long-standing puzzles regarding F-theory models with multiple U(1) factors and provides a useful framework for analyzing the 6D “swampland” of apparently consistent low-energy theories that cannot be realized through known string constructions. We note also that the matter content of the standard model is generic by the criteria used here only if the global structure is SU(3)
c
× SU(2)
L
× U(1)
Y
/
ℤ
6
.
Journal Article
J.M.W. Turner
J.M.W. Turner (1775-1851) is arguably Britain's greatest painter. An extraordinary and prolific artist of incredible range, his pioneering explorations in oils and watercolours, his innovative use of colour and the proliferation of his work through print media enabled him to forge a stellar reputation in his own time. Yet, his dramatic landscapes, marine paintings and revelatory scenes of industry, war and contemporary life are as captivating to audiences today as they were then. This book is an essential introduction to the life and work of this influential artist. Tracing Turner's journey from his modest beginnings and formative years, through to his tours and engagement with the British and Continental landscape, alongside pioneering historical, biblical and classical narrative paintings, it highlights his breathtaking technical skill and deep engagement with his own times.
BOOK
An infinite swampland of U(1) charge spectra in 6D supergravity theories
A
bstract
We analyze the anomaly constraints on 6D supergravity theories with a single abelian U(1) gauge factor. For theories with charges restricted to
q
= ±1
,
±2 and no tensor multiplets, anomaly-free models match those models that can be realized from F-theory compactifications almost perfectly. For theories with tensor multiplets or with larger charges, the F-theory constraints are less well understood. We show, however, that there is an infinite class of distinct massless charge spectra in the “swampland” of theories that satisfy all known quantum consistency conditions but do not admit a realization through F-theory or any other known approach to string compactification. We also compare the spectra of charged matter in abelian theories with those that can be realized from breaking nonabelian SU(2) and higher rank gauge symmetries.
Journal Article
Adsorption of trace metals by microplastic pellets in fresh water
Adsorption of trace metals (Ag, Cd, Co, Cr, Cu, Hg, Ni, Pb, Zn) to new (virgin) and aged (beached) plastic production pellets suspended in river water (pH ~ 6.5) has been studied under laboratory conditions. Over a 7-day period, reaction kinetics largely conformed to a pseudo-first-order reversible mechanism with forward rate constants that were typically at least an order of magnitude greater for beached pellets than virgin pellets. Adsorption isotherms were defined by a linear model in many cases, with maximum distribution coefficients of ~6 mL g-1 for virgin pellets (Hg and Pb) and of the order of 102 mL g-1 for beached pellets (Ag and Pb). However, more significant fits to the data were obtained using Freundlich or Langmuir models with adsorption constants that were orders of magnitude greater for beached pellets than virgin pellets and, regarding the former, that were greatest for Ag, Hg and Pb. Increasing pH of river water resulted in an increase in adsorption of Ag, Cd, Co, Ni, Pb and Zn, a reduction in adsorption of Cr and no clear trend for Cu or Hg, and adsorption was always greater to beached pellets than virgin pellets. The ability of pellets to adsorb metals was attributed to the modification of the surface through the attachment of organic matter during the experiments and, with regard to beached pellets, their long-term pre-modification through photooxidation and attrition of charged material. Interactions at the pellet surface likely involve metal cations, oxyanions (HCrO4-/CrO42-) and organic complexes.
Journal Article
Automatic enhancement in 6D supergravity and F-theory models
A
bstract
We observe that in many F-theory models, tuning a specific gauge group
G
and matter content
M
under certain circumstances leads to an automatic enhancement to a larger gauge group
G
′ ⊃
G
and matter content
M
′ ⊃
M
. We propose that this is true for any theory
G, M
whenever there exists a containing theory
G
′
, M
′ that cannot be Higgsed down to
G, M
. We give a number of examples including non-Higgsable gauge factors, nonabelian gauge factors, abelian gauge factors, and exotic matter. In each of these cases, tuning an F-theory model with the desired features produces either an enhancement or an inconsistency, often when the associated anomaly coefficient becomes too large. This principle applies to a variety of models in the apparent 6D supergravity swampland, including some of the simplest cases with U(1) and SU(
N
) gauge groups and generic matter, as well as infinite families of U(1) models with higher charges presented in the prior literature, potentially ruling out all these apparent swampland theories.
Journal Article
Detection of Tetrodotoxin Shellfish Poisoning (TSP) Toxins and Causative Factors in Bivalve Molluscs from the UK
Tetrodotoxins (TTXs) are traditionally associated with the occurrence of tropical Pufferfish Poisoning. In recent years, however, TTXs have been identified in European bivalve mollusc shellfish, resulting in the need to assess prevalence and risk to shellfish consumers. Following the previous identification of TTXs in shellfish from southern England, this study was designed to assess the wider prevalence of TTXs in shellfish from around the coast of the UK. Samples were collected between 2014 and 2016 and subjected to analysis using HILIC-MS/MS. Results showed the continued presence of toxins in shellfish harvested along the coast of southern England, with the maximum concentration of total TTXs reaching 253 µg/kg. TTX accumulation was detected in Pacific oysters (Crassostrea gigas), native oysters (Ostrea edulis) common mussels (Mytilus edulis) and hard clams (Mercenaria mercenaria), but not found in cockles (Cerastoderma edule), razors (Ensis species) or scallops (Pecten maximus). Whilst the highest concentrations were quantified in samples harvested during the warmer summer months, TTXs were still evident during the winter. An assessment of the potential causative factors did not reveal any links with the phytoplankton species Prorocentrum cordatum, instead highlighting a greater level of risk in areas of shallow, estuarine waters with temperatures above 15 °C.
Journal Article
Climatology of Tibetan Plateau Vortices in Reanalysis Data and a High-Resolution Global Climate Model
The Tibetan Plateau (TP) and surrounding high mountains constitute an important forcing of the atmospheric circulation due to their height and extent, and thereby impact weather and climate in downstream regions of East Asia. Mesoscale Tibetan Plateau vortices (TPVs) are one of the major precipitation-producing systems on the TP. A fraction of TPVs move off the TP to the east and can trigger extreme precipitation in parts of China, such as the Sichuan province and the Yangtze River valley, which can result in severe flooding. In this study, the climatology of TPV occurrence is examined in two reanalyses and, for the first time, in a high-resolution global climate model using an objective feature tracking algorithm. Most TPVs are generated in the northwestern part of the TP; the center of this main genesis region is small and stable throughout the year. The strength and position of the subtropical westerly jet is correlated to the distance TPVs can travel eastward and therefore could have an effect on whether or not a TPV is moving off the TP. TPV-associated precipitation can account for up to 40% of the total precipitation in parts of China in selected months, often due to individual TPVs. The results show that the global climate model is able to simulate TPVs at N512 (∼25 km) horizontal resolution and in general agrees with the reanalyses. The fact that the global climate model can represent the TPV climatology opens a wide range of options for future model-based research on TPVs.
Journal Article