It reaches from Torres Strait between Bramble Cayits northernmost island, and the south coast of Papua New Guinea in the north to the unnamed passage between Lady Elliot Island its southernmost island and Fraser Island in the south. Also during this time, Queensland experienced volcanic eruptions leading to central and shield volcanoes and basalt flows. The reef's substrate may have needed to build up from the sediment until its edge was too far away for suspended sediments to inhibit coral growth. Heron Islanda coral cay in the southern Great Barrier Reef The land that formed the substrate of the current Great Barrier Reef was a coastal plain formed from the eroded sediments of the Great Dividing Range with some larger hills most of which were themselves remnants of older reefs  or, in rare cases, volcanoes :
Human overpopulation is among the most pressing environmental issues, silently aggravating the forces behind global warmingenvironmental pollutionhabitat lossthe sixth mass extinctionintensive farming practices and the consumption of finite natural resources, such as fresh water, arable land and fossil fuelsat speeds faster than their rate of regeneration.
However, ecological issues are just the beginning According to the World Resources Institute"Freshwater ecosystems — the diverse communities found in lakes, rivers, and wetlands — may be the most endangered of all.
Freshwater ecosystems have lost a greater proportion of their species and habitat than ecosystems on land or in the oceans; in addition, they are probably in greater danger of further losses from dams, pollution, overfishing, and other threats.
Aldous Huxley predicted in that democracy is threatened due to overpopulation and could give rise to totalitarian style governments and it turns out he was right.
Rules and restrictions can be good ideas, but only because they are necessary in order to accommodate the growing populations that are encouraging such policies.
Without these policies, the global ecological crisis, and the societal and economic issues that ensue, would be worse than they are today. Examples of such restrictions would be putting limits on water consumption, on driving and on what people can do on their land.
Some are good ideas while others may be too invasive, but all are exacerbated by overpopulation. Click to enlarge Increased Global Warming and Climate Change According to the Center for Biological Diversity"The largest single threat to the ecology and biodiversity of the planet in the decades to come will be global climate disruption due to the buildup of human-generated greenhouse gases in the atmosphere.
People around the world are beginning to address the problem by reducing their carbon footprint through less consumption and better technology. But unsustainable human population growth can overwhelm those efforts, leading us to conclude that we not only need smaller footprints, but fewer feet.
Every professional scientific society in every field related to the field of climate endorses it. The consensus is unequivocal: The effects of climate change are profound and far-reaching.
Learning the hard way that we can't separate the economy from the ecological systems that support it, climate change, perhaps the greatest challenge and threat humanity has ever faced, has been left largely unchecked by world leaders to continue unabated threatening the basis of civilization itself.
Center for Biological Diversity. Center for Biological Diversity Click for source Depletion of Natural Resources As the human population continues to explode, finite natural resources, such as fossil fuelsfresh water, arable land, coral reefs and frontier forestscontinue to plummet, which is placing competitive stress on the basic life sustaining resources and leading to a diminished quality of life.
Each person on Earth now requires a third more land to supply his or her needs than the planet can supply. Furthermore, intensive farming kills beneficial insects and plantsdegrades and depletes the very soil it depends oncreates polluted runoff and clogged water systemsincreases susceptibility to floodingcauses the genetic erosion of crops and livestock species around the worlddecreases biodiversityand destroys natural habitats.
Elevated Crime Rate As human overpopulation drives resources and basic necessities, such as food and water, to become scarcerthere will be increased competitiveness for these resources which leads to elevated crime rates due to drug cartels and theft by people in order to survive.
As Aisha Tariq of the Pakistan Times states"It has been observed that the countries which have balanced population, crime rate is very low in such regions. When people are not provided with the basic necessities, it elevates crime rate.
These situations are especially dire for populations in Uganda, Nigeria, and Bangladesh, which will double and, in some cases, even triple over the next 40 years. A child suffering extreme malnutrition in India, According to the World Health Organization"Every three seconds a young child dies - in most cases from an infectious disease.
In some countries, one in five children die before their fifth birthday. Every day 3 people die from malaria - three out of four of them children. Great Apes - the Road Ahead. The effects listed on this page are just some of the main problems associated with or exacerbated by human overpopulation.
A comprehensive list of the effects of human overpopulation are beyond compiling and perhaps, comprehension. They extend far and wide and across social, political, economic and environmental divides.Even on the extensively managed Great Barrier Reef (GBR), average coral cover has dropped by 50% in recent decades, a change that has been attributed to intense cyclones, outbreaks of crown-of-thorns starfish (COTS), and bleaching.
While these recent disturbances have affected reef health, long-term changes in coral cover represent the . Enormous and unique, the iconic Great Barrier Reef is an ecosystem hosting nearly 3, coral reefs. The vibrant corals sprout near the coast of Australia across a stretch of about , square.
The bleaching event resulted in 30% mortality on the Great Barrier Reef, with many corals dying of the heat before they bleached and the loss of branching corals creating less complex reef.
The Great Barrier Reef (GBR) is an ecosystem at risk that is both vulnerable and resilient to change. Natural stress and human induced modifications affect the functioning of the ecosystem, with short and long term impacts.
News on Environmental Issues. Research articles on global warming, ozone depletion, air and water pollution, acid rain, waste management and more. The Great Barrier Reef is the world's largest coral reef system composed of over 2, individual reefs and islands stretching for over 2, kilometres (1, mi) over an area of approximately , square kilometres (, sq mi).
The reef is located in the Coral Sea, off the coast of Queensland, regardbouddhiste.com Great Barrier Reef can be seen from outer space and is the world's biggest.