It is estimated that by 2050 more than two thirds of the world’s population will live in cities, up from about 54 percent today. While the many benefits of organized and efficient cities are well understood, we need to recognize that this rapid, often unplanned urbanization brings risks of profound social instability, risks to critical infrastructure, potential water crises and the potential for devastating spread of disease. These risks can only be further exacerbated as this unprecedented transition from rural to urban areas continues.
How effectively these risks can be addressed will increasingly be determined by how well cities are governed. The increased concentration of people, physical assets, infrastructure and economic activities mean that the risks materializing at the city level will have far greater potential to disrupt society than ever before.
Urbanization is by no means bad per se. It brings important benefits for economic, cultural and societal development. Well managed cities are both efficient and effective, enabling economies of scale and network effects while reducing the impact on climate of transportation. As such, an urban model can make economic activity more environmentally-friendly. Further, the proximity and diversity of people can spark innovation and create employment as exchanging ideas breeds new ideas.
But these utopian concepts are threatened by some of the factors driving rapid urbanization. For example, one of the main factors is rural-urban migration, driven by the prospect of greater employment opportunities and the hope of a better life in cities. But rapidly increasing population density can create severe problems, especially if planning efforts are not sufficient to cope with the influx of new inhabitants. The result may, in extreme cases, be widespread poverty. Estimates suggest that 40% of the world’s urban expansion is taking place in slums, exacerbating socio-economic disparities and creating unsanitary conditions that facilitate the spread of disease.
The Global Risks 2015 Report looks at four areas that face particularly daunting challenges in the face of rapid and unplanned urbanization: infrastructure, health, climate change, and social instability. In each of these areas we find new risks that can best be managed or, in some cases, transferred through the mechanism of insurance.
Infrastructure
The quality of a city’s infrastructure is central to the residents’ quality of life, social inclusion and economic opportunities. It also determines the city’s resilience to a number of global risks, in particular environmental, social and health-related risks, but also economic risks such as unemployment. The availability and quality of infrastructure are at the core of many of the challenges faced by rapidly urbanizing cities in developing countries, while underinvestment is posing similar challenges in most developed economies (WEF data.)
Infrastructure investments in most developed economies are insufficient to maintain the quality of infrastructure (WEF and OECD data): Transportation infrastructure (roads, railroad, airports, ports)
Electric power supply and distribution
Water supply and sewage
Communications infrastructure
This underinvestment is particularly notable in the U.S., UK and Germany.
Infrastructure failure would have significant implications for property and business continuity for city authorities as well as local and central Government bodies. Insurers can help in these areas in terms of risk engineering advice on infrastructure maintenance and also appropriate levels of insurance property damage and business interruption coverage.
As cities expand rapidly, there is a risk that infrastructure will not keep pace with their growth or the increased expectations of their populations. Action is urgently needed to close the infrastructure gap and reduce the potential for risks to have catastrophic cascading effects. The OECD estimates that governments will have to spend approximately USD 71 trillion by 2030 to provide adequate global infrastructure for electricity, road and rail transport, telecommunications, and water.
Glycolysis is the metabolic pathway in which metabolize the sugar and produce pyruvate molecule or lactic acid and produce the energy in the form of ATP and NADH.
Glycolysis is an example of the fermentation as fermentation is also a metabolic pathway in which an organism turns glucose into the lactic acid or the alcohol to produce energy for electron transfer system.
Thus, the correct answer is - option D. fermentation.
if you live in the inland the weather is much different then on the coast, the thing that contradicts this is mainly sea breeze which cools you but doesn't change the UV index. Im no meteorologist but thats just my personal idea of things. My answer may not be spot on with that subject so double check first.
The correct answer is - a. mesial, b. distal c. buccal d. distal e. lingual f. occlusal.
Explanation:
Mesial is the surface near the midline of the face, In dentistry, the canine is mesial to the first molar which means it is the middle of the face. The third molar is distal to the second molar.
Distal is the backside of a particular tooth in dentistry. The cheek side of the tooth known as the facial surface for the front teeth in dentistry. Lateral incisors are distal to the central incisors. Lingual is the part of the tooth near the tongue. The chewing surface of posterior teeth is also known as the occlusal.
Deposition by the river replenishes soil in the wetlands with sediment and nutrients illustrates a positive effect that the Nueces River has on the wetlands.
Option: C
Explanation:
A river in its lower course leave the high elevated area and enters into the flat land. In the lower course of the river deposition is the prime work of a river. Estuary, delta are some of the landform that formed in the lower course of a river. Here, Nueces estuary is formed where Nueces river enters into the gulf.
In this gulf a wetland is formed which supports aquatic life and a dwelling place for them and land species also. Here, river deposits all its sediments and replenish the soil of wetland with new sediments and nutrients.
