scispace - formally typeset
Search or ask a question
Institution

Mott MacDonald

CompanyLondon, United Kingdom
About: Mott MacDonald is a company organization based out in London, United Kingdom. It is known for research contribution in the topics: Electric power system & Wind power. The organization has 586 authors who have published 529 publications receiving 9801 citations. The organization is also known as: Mott MacDonald Group & MMD.


Papers
More filters
Journal ArticleDOI
24 Sep 1998-Nature
TL;DR: Sedimentological study of the Ganges alluvial sediments shows that the arsenic derives from the reductive dissolution of arsenic-rich iron oxyhydroxides, which in turn are derived from weathering of base-metal sulphides.
Abstract: In Bangladesh and West Bengal, alluvial Ganges aquifers used for public water supply are polluted with naturally occurring arsenic, which adversely affects the health of millions of people. Here we show that the arsenic derives from the reductive dissolution of arsenic-rich iron oxyhydroxides, which in turn are derived from weathering of base-metal sulphides. This finding means it should now be possible, by sedimentological study of the Ganges alluvial sediments, to guide the placement of new water wells so they will be free of arsenic.

1,454 citations

Journal ArticleDOI
TL;DR: In some areas of Bangladesh and West Bengal, concentrations of As in groundwater exceed guide concentrations, set internationally and nationally at 10 to 50 m gl ˇ1 and may reach levels in the mg l ˆ 1 range.

1,188 citations

Journal ArticleDOI
TL;DR: The evidence in favour of Jevons Paradox is far from conclusive, but it does suggest that economywide rebound effects are larger than is conventionally assumed and that energy plays a more important role in driving productivity improvements and economic growth than is normally assumed as discussed by the authors.

860 citations

Journal ArticleDOI
TL;DR: This study provides the first global field evidence for the requirement of a critical mass for recovery of seagrass species, which may also hold for other foundation species showing strong positive feedback to a dynamic environment.
Abstract: In coastal and estuarine systems, foundation species like seagrasses, mangroves, saltmarshes or corals provide important ecosystem services. Seagrasses are globally declining and their reintroduction has been shown to restore ecosystem functions. However, seagrass restoration is often challenging, given the dynamic and stressful environment that seagrasses often grow in. From our world-wide meta-analysis of seagrass restoration trials (1786 trials), we describe general features and best practice for seagrass restoration. We confirm that removal of threats is important prior to replanting. Reduced water quality (mainly eutrophication), and construction activities led to poorer restoration success than, for instance, dredging, local direct impact and natural causes. Proximity to and recovery of donor beds were positively correlated with trial performance. Planting techniques can influence restoration success. The meta-analysis shows that both trial survival and seagrass population growth rate in trials that survived are positively affected by the number of plants or seeds initially transplanted. This relationship between restoration scale and restoration success was not related to trial characteristics of the initial restoration. The majority of the seagrass restoration trials have been very small, which may explain the low overall trial survival rate (i.e. estimated 37%). Successful regrowth of the foundation seagrass species appears to require crossing a minimum threshold of reintroduced individuals. Our study provides the first global field evidence for the requirement of a critical mass for recovery, which may also hold for other foundation species showing strong positive feedback to a dynamic environment.Synthesis and applications. For effective restoration of seagrass foundation species in its typically dynamic, stressful environment, introduction of large numbers is seen to be beneficial and probably serves two purposes. First, a large-scale planting increases trial survival - large numbers ensure the spread of risks, which is needed to overcome high natural variability. Secondly, a large-scale trial increases population growth rate by enhancing self-sustaining feedback, which is generally found in foundation species in stressful environments such as seagrass beds. Thus, by careful site selection and applying appropriate techniques, spreading of risks and enhancing self-sustaining feedback in concert increase success of seagrass restoration.

313 citations

Journal ArticleDOI
D.J. Barker1, S.A. Turner1, P.A. Napier-Moore1, M. Clark, J.E. Davison 
TL;DR: In this article, the authors presented a study which assessed the technologies that could be used for CO2 capture in cement plants, their costs, and barriers to their use, and the work covered new-build cement plants with postcombustion and oxy-combustions CO2 Capture and Storage (CCS) technologies.

270 citations


Authors

Showing all 587 results

Network Information
Related Institutions (5)
British Geological Survey
7.3K papers, 241.9K citations

70% related

Masdar Institute of Science and Technology
2.5K papers, 75.8K citations

69% related

Royal School of Mines
1.2K papers, 40.9K citations

67% related

Riga Technical University
7.6K papers, 58.6K citations

66% related

SINTEF
14.8K papers, 347.1K citations

66% related

Performance
Metrics
No. of papers from the Institution in previous years
YearPapers
20223
202144
202027
201934
201840
201737