Planet earth and its environment

By Early Modern Englishmany nouns were capitalized, and the earth became and often remained the Earth, particularly when referenced along with other heavenly bodies. More recently, the name is sometimes simply given as Earth, by analogy with the names of the other planets. Oxford spelling recognizes the lowercase form as the most common, with the capitalized form an acceptable variant. Another convention capitalizes "Earth" when appearing as a name e.

Planet earth and its environment

By Vivien Cumming 14 March Overpopulation. It is a word that makes politicians wince, and is often described as the "elephant in the room" in discussions about the future of the planet. You often hear people citing overpopulation as the single biggest threat to the Earth.

But can we really single out population growth in this way? Are there really too many people on our planet? It is clear to all of us that the planet is not expanding. There is only so much space on Earth, not to mention only so many resources — food, water and energy Planet earth and its environment that can support a human population.

Planet earth and its environment

So a growing human population must pose some kind of a threat to the wellbeing of planet Earth, mustn't it? View image of Earth is not getting any bigger Credit: Just 10, years ago there might have been no more than a few million people on the planet.

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The one billion mark was not passed until the early s; the two billion mark not until the s. As it stands now, though, the world's population is over 7. According to United Nations predictions it could reach 9. Population growth has been so rapid that there is no real precedent we can turn to for clues about the possible consequences.

In other words, while the planet might hold over 11 billion people by the end of the century, our current level of knowledge does not allow us to predict whether such a large population is sustainable, simply because it has never happened before.

We can get clues, though, by considering where population growth is expected to be strongest in the years ahead. Satterthwaite says that most of the growth over the next two decades is predicted to be in urban centres in what are currently low and middle-income countries.

It is not the number of people on the planet that is the issue — but the number of consumers and the scale and nature of their consumption On the face of it, the global impact of adding several billion people to these urban centres might be surprisingly small. This is because urbanites in low- and middle-income countries have historically consumed little.

The emissions of carbon dioxide and other greenhouse gases give us a good indication of how high consumption is in a city. Copenhagen is the capital of a high-income nation — Denmark — while Porto Alegre is in upper-middle-income Brazil. Living standards are high in both cities, yet per capita emissions are relatively low.

View image of Copenhagen: There are many low-income urban dwellers whose consumption is so low that they contribute almost nothing to greenhouse gas emissions. People living in high-income nations must play their part if the world is to sustain a large human population So a world with a human population of 11 billion might put comparatively little extra strain on our planet's resources.

But the world is changing. Low-income urban centres may not continue on low-carbon development trajectories. The real concern would be if the people living in these areas decided to demand the lifestyles and consumption rates currently considered normal in high-income nations; something many would argue is only fair.

If they do, the impact of urban population growth could be much larger. This fits with a general pattern that has played out over the past century or so, explains Will Steffenan emeritus professor with the Fenner School of Environment and Society at the Australian National University.

It is not the rise in population by itself that is the problem, but rather the even more rapid rise in global consumption which of course is unevenly distributed.

This leads to an uncomfortable implication: Only when wealthier groups are prepared to adopt low-carbon lifestyles, and to permit their governments to support such a seemingly unpopular move, will we reduce the pressure on global climate, resource and waste issues.Like the rest of 'Planet Earth II', "Cities" in general feels like its own individual story and never feels episodic or repetitive.

In conclusion, great end to an exceptional series.

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9/10 Bethany Cox 4 of 4 people found this review helpful. Young Children's Relationship with Nature: Its Importance to Children's Development & the Earth's Future particularly in the area of social skills and environmental learning (Evan ).

Rusty Keeler’s Planet Earth Playscapes andthe White Hutchinson Leisure & Learning Group’s discovery play gardens are examples of early childhood. 5 Notes MODULE - 1 Environment through Ages Origin of Earth and Evoluation of the Environment of life on it has not been conclusively established.

• Jupiter (Brahaspati) is the largest planet of . With a radius of 3, miles, Earth is the fifth largest planet in our solar system, and it's the only one known for sure to have liquid water on its surface.

Given the considerable thickness of its cross section, this technology provides interesting performance for indoor environment confined, in particular during the summer season.

Jun 12,  · Environment The natural environment, commonly referred to simply as the environment, is a term that encompasses all living and non-living things occurring naturally on Earth or some region thereof.

An ecosystem is a natural unit consisting of all .

6 Reasons You Should Care About Our Environment - The EcoAdmirer