The U.S. has more than 87,000 dams greater than six feet high (and two million overall). While many dams continue to provide benefits such as flood control, irrigation, and water supply, for other dams the cost of maintenance or the negative effects on communities, fish, and tribes justifies their removal.
Dam owners and regulators decide whether to remove a dam by weighing many factors including: the cost of removal and the ability to replace any lost power generation against avoided long-term maintenance; safety concerns; benefits to endangered fish populations; increased recreational and commercial fishing; and restoration of cultural values of nearby tribes.
By 2020, roughly 70% of dams will be more than 50 years old, inviting us to reconsider the value to the public of long-term investments in this infrastructure.
There are seven provinces that are either entirely or partially located between 50 N and 60 N.
Explanation:
Canada is a vast country, in fact it is the second largest in the world. The country is located on high latitude, and more than half of its mainland territory is between the latitudes of 50 N and 60 N. The provinces are very large, and each of them is larger than big portion of the countries in the world. In the southern half of the country, the provinces tend to be arranged in an east to west manner, kind of by longitude.
- There are ten provinces in Canada.
- Seven out of the ten provinces are entirely or partially between the latitudes of 50 N and 60 N.
- The provinces located between these latitudes are Newfoundland, Quebec, Ontario, Manitoba, Saskatchewan, Alberta, and British Columbia.
- The three other provinces, Nunavut, North West Territory, and Yukon Territory, are located further north, mostly between 60 N and 70 N.
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Answer:
All answers are correct. The Global Reporting Initiative is a framework that sets out the principles and indicators for organizations to measure and report their economic, environmental, and social performance; It’s an initiative to lead multinational enterprises to report globally; and it’s a framework to help national firms to report globally to gain international investors.
The Global Reporting Initiative is a global organization, which aims to set reporting standards for companies, regarding sustainable development.
The innovative character of GRI is based on three principles. First, the standards are developed collaboratively, through the cooperation of a diverse range of actors, who normally would not have considered themselves members of the same network. Second, GRI is designed as a self-regenerating system, a design that is designed to ensure adaptability. Finally, the system is based on an organizational structure that acts as guarantor of the standards, that are designed as a public good.
I’ve researched this for an hour and don’t see any of these answer choices , but my method is “ when in doubt C your way out “
Human health can be affected by changes in air quality mainly because if the air is bad they will have various health defects. For example with some of the cities in China much of the air there is polluted. Thus human health may be affected by added stress as well as breathing in polluted air which will cause side effects.
All in all human health is affected by changes in air quality because air is what humanity breaths to survive. If in some way this air were to be polluted we would suffer from decreased health due to a circulation of fossil fuels in our atmosphere.