The world has been urbanizing rapidly in recent decades. In 1950, only 30 percent of the world’s population lived in urban areas, a proportion that grew to 55 percent by 2018. The global urbanization rate masks important differences in urbanization levels across geographic regions.
Northern America is the most urbanized region, with 82 percent of its population residing in urban areas, whereas Asia is approximately 50 percent urban, and Africa remains mostly rural with 43 percent of its population living in urban areas in 2018 (United Nations, 2018).
Hong Kong, New York, London, Tokyo, and Paris – all of these cities are quite unique yet same in so many regards. They represent technological, social and infrastructural hubs of what is commonly referred to as a modern human society. No matter what background, professional experience or connections you may or may not have, chances are that something new waits in each of these cities – and that is a problem.
Increasing environmental sustainability has become an important topic both on the minds of many individuals and in the media. This is for good reason – recently, studies have starkly illuminated the impact of climate change and the role humans play in increasing global temperatures. With sobering consequences such as drought and more severe weather patterns, an increased number of people have started to consider how they can become more sustainable. In this global shift, many cities are moving to become more sustainable and decrease negative impacts on the environment. Although the level of involvement varies by city and country, an evolution is occurring as cities implement improved infrastructure and policies to become more sustainable.
To champion science is to celebrate life. It is to apply the lessons of the laboratory to real-life circumstances. It is to address matters of life and death. It is to stay calm amidst chaos and confusion. It is to recognize the urgency of the need to act-in an emergency-when there is no time to wait for first responders to arrive on the scene.
This is perhaps one of the most powerful and thought-provoking quotes I have ever come across. The environment is really something that we all have in common, and we cannot afford to lose it at any cost.
One of the biggest global health crises we face today impacts more than a billion people. It’s not HIV or heart disease. Malaria or mental health. It’s vision impairment. More than 253 million people are visually impaired and there are 1.1 billion people with near-vision impairment according to a paper published by the Vision Loss Expert Group in the Lancet. But a simple pair of eyeglasses can change the lives of these people dramatically.
Education is something which everyone wants to obtain. Everyone needs a perfect and complete education. Children’s always like to spend their time outside instead of being in one room. When we place children outside they start to explore themselves and they love to be within nature. When they are in nature they will be able to nurture more and more and they will be able to develop their individual personality and lead to development. Research shows that the kids who spend time outside with nature will be more happy and energetic. In olden days we have seen in movies and in other sources teachers used to teach lessons outside the classroom. They always prefer a place which is under the tree. They know that the pure and fresh air brings positivity to children’s mind that will make them happy; it will help them to stay fresh in mind, and concentrate on lessons easily. Its main factor is to relieve stress. But as time goes we adopted the new method of teaching in the classroom. Students are seated in one room which is covered with walls. They don’t have another source of knowledge they have to be more materialistic. Education is not only about learning process it also includes adopting mental development and accepting a positive perspective towards life.
In a recent Nature Sustainability paper, a team of scientists concluded that the Earth can sustain, at most, only 7 billion people at subsistence levels of consumption (and this June saw us at 7.6 billion). Achieving ‘high life satisfaction’ for everyone, however, would transgress the Earth’s biophysical boundaries, leading to ecological collapse.
Thanks to improvements in healthcare and many other areas, people today are living longer, healthier, and happier lives than ever before. And what’s more, these improvements are global. It’s happening in the developing countries as well. Africa, the poorest continent (eighteen of the poorest countries by GDP per capita are in Africa) is also no exception: the Infant Mortality Rate (IMR) declined significantly between 1960 and 2001.
For example, in Ethiopia, as late as 1980, almost a quarter of the children died before their fifth birthday. Today, fewer than 6% die, which is still far too many, but the numbers continue to fall. And vaccines play a very crucial part here. But, supplying vaccines to distant clinics in hot climates served by poorly developed transport networks is a big problem. The vaccines must be kept between 2 and 8° C (36 to 46 °F). They need to be distributed in a temperature-controlled supply chain, which is called “cold chain”. Now, there are two new innovations addressing this problem.
One of them is MetaFridge, a cooler which allows them vaccines to stay between 2 and 8° C (36 to 46 °F) for days, even if the power is out.
Despite today people are living longer, healthier, and happier lives than ever before, there are still many problems that humanity should address. One of the most important of them is the water inequality. While people in First World countries can very easily take fresh, clean water for granted, more than 800 million others in impoverished areas have no access to any clean water source. It is a common occurrence in some regions for people to defecate openly, walk more than 30 minutes to access clean water and share toilets with other humans. In 2018, is this really something that we should just accept as an inevitable way of the world?