The green color is a characteristic of a natural environment. The green color is associated with a natural ecosystem, forests, where animals live. Green world is a symbol of good social order in the society. Human activities like farming have resulted in the destruction of the green ecosystem. The events have led to deforestation of a substantial part of the natural forest. Some activities involving significant amounts of energy, mostly electrical have also contributed to the destruction of the natural environment. The natural environment is for the past generation, current generation and future generation, therefore it’s worth protecting and maintaining to its initial status. The environmentalists and the government have focused their attention on the environmental issues affecting the green world today. The environmentalists are defining solutions to curb the environmental destruction; these include sensitizing people about the advantages of having a natural environment, planting trees, saving energy and use of alternative forms of energy.
The number of people migrating to urban centers has rapidly shot up in the current generation. The movement has seen several children born in town; these kids lack the knowledge of a green world. The children though seeing products of the green world, e.g. furniture, don’t know the benefits of living in a natural environment. Sensitization about the importance of green world can play a role in embracing the green world by the current generation. The current generation needs to know the reasons for protecting the environment. The present generation should be directed to change their irresponsible behavior towards the environment.
Laws are protective and can protect our natural environment. The government needs to implement laws mitigating excessive human activities responsible for the destruction of the natural forest. Farming and building of new homes are important to the human race, but the government can set parts of the country’s land aside from these activities. The government can also implement laws demanding that if cut trees to build homes, you must plant some trees around your home and within the home. These rules will ensure we maintain our green world.
Energy is vital to the human daily survival, both at home and in the manufacturing industry. The demand for energy is increasing at an alarming rate due to rapid population growth. In homes energy is used in lighting houses, warming houses, laundry, entertainment, etc. Instead of primarily depending on hydrogenated electricity people can install solar panels in their buildings. The solar panels convert the natural sunlight energy into electricity which can be used to in the house. Use of natural power source is beneficial as it does not pollute or degrade the environment but shows that the world around us is green. Also, in the manufacturing industries; the stakeholders needs to find an alternative source of energy apart from the already over-exploited oil. The attempts to find alternative energy will save the natural environment for future generations. Use of alternative green energy is important in recognizing the green world we are living in.
Our homes are made of green. The furniture, bedding and buildings are some examples. Most houses have woods everywhere; the woods are a result of the green forest. The use of green forest in homes guarantees everyone of living in the green world.
Most cleaning activities in the society require water. Technologies need to be invented to reduce the amount of water used on a daily basis. Instead of using water to clean cars, pressure cleaners using gas only can be utilized. Also, in homes, the amount of water used can be controlled by introducing control mechanisms. The control of the amount of water used will save the natural ecosystem as no one will be drilling everywhere to get water.
The natural environment is important for both the animals and the humans. The natural environment has been brought in homes inform of green energy and the wood products people use in homes.
Your local park is likely playing a vital role in your city’s health, and probably your own too. Parks and other “green spaces” help keep cities cool, and as places of recreation, can help with health issues such as obesity. Even looking at greenery can make you feel better.
But in increasingly crowded cities, it can be difficult to find room for parks. Fortunately, there are other green spaces, or potential green spaces that can provide the same benefits.
In recent research, we found that these spaces are more common than we thought. And innovative green spaces overseas show how we might use them.
Cities are getting crowded
In the next thirty years, almost three quarters of the global population will live in cities. Underpinning this glib statistic is an astounding wave of migration driven by changing livelihoods, global economic changes and environmental change, which is unprecedented in human history.
This presents a number of challenges for urban planning — more housing, schools and hospitals, better infrastructure such as transportation, water, sanitation and electricity.
Parks in this competition for space are often an afterthought. This can lead to some big problems, especially in higher-density cities. Such problems include urban heat (from concrete, bitumen and glass), storm water run-off, and fewer parks to play and relax. Fewer parks can in turn lead to health impacts such as obesity, anxiety and depression.
Worse still, in some cities parks and other green-spaces are regarded as a luxury, not a necessity. In a climate of fiscal austerity, some city managers and elected officials are making decisions that will potentially harm the quality of life of urban residents, now and into the future.
Some local governments regard under-utilised parks as surplus assets, which might be sold to bolster strained coffers.
Other cities, like Melbourne, have sacrificed some park spaces for new road and tunnel projects. But the short-term financial gain from selling parks or converting them to other purposes could very well lead to long term pain.
Making real urban jungles
Around the world, city planners and design professionals have begun to respond to the problem of park shortages by finding innovative solutions to add more green-spaces to cities. These include green roofs, green walls and pocket-parks.
Some unconventional solutions are emerging too. Parking lots, former industrial sites (brown fields) and even abandoned infrastructure like old railway lines are being converted into new green spaces.
Some cities like Seoul in Korea for instance, have torn down freeways to make room for new green spaces for people, plants and animals, with big financial and social dividends. The Seoul Metropolitan Government has seen billion-dollar returns from its Cheonggyecheon stream restoration project, and has realised other benefits too such as cooler temperatures, increased use of public transport, adaptive re-use of buildings, increased tourism, and a return of plants and animals to the “concrete jungle”.
The parklets of San Francisco are reinvigorating urban spaces, improving street life and encouraging more people into active lifestyles.
And in Hangzhou, China, the removal of old factories and conversion of grey space into linear parks, as well as park-making on “wasteland”, has opened up spaces for recreation and relaxation to millions of residents.
More parks aren’t always the solution
But making new parks can be expensive, especially in the urban core. Park-making projects can also increase the value of surrounding properties. If these projects are undertaken in poorer neighbourhoods, they can harm marginalised and vulnerable residents, by forcing them out of their homes as rents and property values rise and wealthier residents move in (gentrification).
With our colleagues, we have noted that planners must take steps to prevent this from occurring, such as rent control or park-making on a more “informal” scale, making neighbourhoods “just green enough”.
If we can’t get city officials to buy land for more parks, then maybe we can convert grey spaces — roads, rooftops and storm-water drains — into functional, yet affordable, green-spaces that people can use for active and passive recreation.
In New York for example, the High Line Trail along a disused railway line has become a major attraction, and breathed life back to a blighted space.
In Mexico, an oil pipeline easement has been converted into a beautiful and functional park — La Línea Verde — in socially vulnerable neighbourhoods. There would appear to be similar opportunities in other cities.
Under-utilised and abandoned spaces such as railway corridors, vacant lots, street verges or even power line easements could make excellent parks.
How much green space?
Until recently, it has been hard for city planners to know how many of these spaces exist, what they are designated for, and whether people can easily access them.
Recent research on “informal green-space” that we have published in PLoS One seeks to answer this question.
We have designed a rapid assessment technique to identify how much “left-over” land exists in cities, which could be used for green-space.
Surprisingly, informal green-space made up around 5% of the urban core in Brisbane (Australia) and Sapporo (Japan), the two cities we surveyed. This means it contributes 14% to the city centres’ total green space — that’s almost 900 soccer fields in Brisbane’s core alone.
We also found that over 80% are at least partly accessible for people to use them. Have a look around on your next walk — maybe a verge or vacant lot near you is just the place for a community garden?