Showing posts with label earth. Show all posts
Showing posts with label earth. Show all posts

Friday, June 19, 2015

Pope Francis Pushes for Environment and Climate Change Sensibility - Encyclical 2015

Yes, the Pope has spoken out on the environment.  A link will take you the document in English but it is also available in a number of other world languages including Arabic too.

 http://w2.vatican.va/content/francesco/en/encyclicals/documents/papa-francesco_20150524_enciclica-laudato-si.html


Available publicly the day after the Australian document on developing north Australia is ironic. That document continues to foster debate in Australia today, with extensive media coverage and more expected in coming weeks and months.

The Pope does not pull any punches in his encyclical and quite clearly in layman's terms comes out to support the premise that a major cause of climate change has been and is now, atmosphere changes from increased levels of greenhouse gases from burning fossil fuels also leading to other effects.

He uses clear, easy to read language and does document material, relying on scientific evidence.

There are a few excerpts around with this one which appeared on the ABC web site in Australia a reasonable overview  - http://www.abc.net.au/news/2015-06-19/pope-francis-warns-humanity-about-pace-of-consumption/6557822

" Pope Francis has issued a major encyclical on the environment, called Laudato Si (Praise Be), On the Care of Our Common Home. Here are some key excerpts from the official English version:
On climate change and its causes
In recent decades this warming has been accompanied by a constant rise in the sea level and, it would appear, by an increase of extreme weather events, even if a scientifically determinable cause cannot be assigned to each particular phenomenon. Humanity is called to recognise the need for changes of lifestyle, production and consumption, in order to combat this warming or at least the human causes which produce or aggravate it. It is true that there are other factors (such as volcanic activity, variations in the Earth's orbit and axis, the solar cycle), yet a number of scientific studies indicate that most global warming in recent decades is due to the great concentration of greenhouse gases (carbon dioxide, methane, nitrogen oxides and others) released mainly as a result of human activity. Concentrated in the atmosphere, these gases do not allow the warmth of the sun's rays reflected by the Earth to be dispersed in space. The problem is aggravated by a model of development based on the intensive use of fossil fuels, which is at the heart of the worldwide energy system.

On dangers to the planet
If present trends continue, this century may well witness extraordinary climate change and an unprecedented destruction of ecosystems, with serious consequences for all of us. A rise in the sea level, for example, can create extremely serious situations, if we consider that a quarter of the world's population lives on the coast or nearby, and that the majority of our megacities are situated in coastal areas. Climate change is a global problem with grave implications: environmental, social, economic, political and for the distribution of goods. It represents one of the principal challenges facing humanity in our day. Its worst impact will probably be felt by developing countries in coming decades.
Doomsday predictions can no longer be met with irony or disdain. We may well be leaving to coming generations debris, desolation and filth. The pace of consumption, waste and environmental change has so stretched the planet's capacity that our contemporary lifestyle, unsustainable as it is, can only precipitate catastrophes, such as those which even now periodically occur in different areas of the world. The effects of the present imbalance can only be reduced by our decisive action, here and now. We need to reflect on our accountability before those who will have to endure the dire consequences.
On consumption, sustainable development and wealth disparity
We all know that it is not possible to sustain the present level of consumption in developed countries and wealthier sectors of society where the habit of wasting and discarding has reached unprecedented levels. The exploitation of the planet has already exceeded acceptable limits and we still have not solved the problem of poverty.
We fail to see that some are mired in desperate and degrading poverty, with no way out, while others have not the faintest idea of what to do with their possessions, vainly showing off their supposed superiority and leaving behind them so much waste, which, if it were the case everywhere, would destroy the planet. In practice, we continue to tolerate that some consider themselves more human than others, as if they had been born with greater rights.

On fossil fuels
There is an urgent need to develop policies so that, in the next few years, the emission of carbon dioxide and other highly polluting gases can be drastically reduced - for example, substituting for fossil fuels and developing sources of renewable energy. Worldwide there is minimal access to clean and renewable energy. There is still a need to develop adequate storage technologies.
We know that technology based on the use of highly-polluting fossil fuels - especially coal, but also oil and, to a lesser degree, gas - needs to be progressively replaced without delay. Until greater progress is made in developing widely accessible sources of renewable energy, it is legitimate to choose the lesser of two evils or to find short-term solutions. But the international community has still not reached adequate agreements about the responsibility for paying the costs of this energy transition.
On political myopia and bureaucratic inertia
Recent world summits on the environment have not lived up to expectations because, due to lack of political will, they were unable to reach truly meaningful and effective global agreements on the environment.
A politics concerned with immediate results, supported by consumerist sectors of the population, is driven to produce short-term growth. In response to electoral interests, governments are reluctant to upset the public with measures, which could affect the level of consumption or create risks for foreign investment. The myopia of power politics delays the inclusion of a far-sighted environmental agenda within the overall agenda of governments.
On market forces and carbon credits
Once more, we need to reject a magical conception of the market, which would suggest that problems can be solved simply by an increase in the profits of companies or individuals. Is it realistic to hope that those who are obsessed with maximising profits will stop to reflect on the environmental damage which they will leave behind for future generations? Where profits alone count, there can be no thinking about the rhythms of nature, its phases of decay and regeneration, or the complexity of ecosystems which may be gravely upset by human intervention.
The strategy of buying and selling "carbon credits" can lead to a new form of speculation, which would not help reduce the emission of polluting gases worldwide. This system seems to provide a quick and easy solution under the guise of a certain commitment to the environment, but in no way does it allow for the radical change which present circumstances require. Rather, it may simply become a ploy which permits maintaining the excessive consumption of some countries and sectors.

On relationship between banks, environment and production
Saving banks at any cost, making the public pay the price, foregoing a firm commitment to reviewing and reforming the entire system, only reaffirms the absolute power of a financial system. A power which has no future and will only give rise to new crises after a slow, costly and only apparent recovery. The financial crisis of 2007-08 provided an opportunity to develop a new economy, more attentive to ethical principles, and new ways of regulating speculative financial practices and virtual wealth. But the response to the crisis did not include rethinking the outdated criteria which continue to rule the world.
Production is not always rational, and is usually tied to economic variables which assign to products a value that does not necessarily correspond to their real worth. This frequently leads to an overproduction of some commodities, with unnecessary impact on the environment and with negative results on regional economies.
The financial bubble also tends to be a productive bubble. The problem of the real economy is not confronted with vigour, yet it is the real economy which makes diversification and improvement in production possible, helps companies to function well, and enables small and medium businesses to develop and create employment.

On effect of mining on the environment and local people
Underground water sources in many places are threatened by the pollution produced in certain mining, farming and industrial activities, especially in countries lacking adequate regulation or controls. It is not only a question of industrial waste. Detergents and chemical products, commonly used in many places of the world, continue to pour into our rivers, lakes and seas.
The export of raw materials to satisfy markets in the industrialised north has caused harm locally, as for example in mercury pollution in gold mining or sulphur dioxide pollution in copper mining. There is a pressing need to calculate the use of environmental space throughout the world for depositing gas residues which have been accumulating for two centuries and have created a situation which currently affects all the countries of the world.
In this sense, it is essential to show special care for indigenous communities and their cultural traditions. They are not merely one minority among others, but should be the principal dialogue partners, especially when large projects affecting their land are proposed. For them, land is not a commodity but rather a gift from God and from their ancestors who rest there - a sacred space with which they need to interact if they are to maintain their identity and values. When they remain on their land, they themselves care for it best. Nevertheless, in various parts of the world, pressure is being put on them to abandon their homelands to make room for agricultural or mining projects which are undertaken without regard for the degradation of nature and culture.

On public pressure on companies and boycotts

A change in lifestyle could bring healthy pressure to bear on those who wield political, economic and social power. This is what consumer movements accomplish by boycotting certain products. They prove successful in changing the way businesses operate, forcing them to consider their environmental footprint and their patterns of production. When social pressure affects their earnings, businesses clearly have to find ways to produce differently. This shows us the great need for a sense of social responsibility on the part of consumers.  "
------

The full document is about 82 pages and if interested in the environment is essential reading, covering ethical issues about the environment and how it has influenced social and moral issues.

I am sure it will not be forgotten as ordinary citizens, scientists and politicians pore over the document in the coming weeks and months.

The Pope carries a bit of clout, and the document and various extracts will be widely read .......worldwide.

Will it influence the world's politicians?  Early days, but the US President has reacted positively to the material.

Lets hope that a decent outcome can be achieved later in 2015 at the climate summit in Paris.  The Pope seems to believe that significant change is needed..........for the world and us.

Thursday, February 27, 2014

Australia Has the World's Oldest Rock

They reckon that Australia is the oldest continent.  Most Australia's have tended to agree with the statement, alluding to stromatilites off the West Australian coast, which were said to be pretty old.


Recent investigations now add a new dimension to the answer..........where are the oldest rocks?


It seems that yes, they are in Australia, with the secrets of early Earth lying in a bright red crystal no larger than a dust mite.


A group of scientists claim to have dated a 400-micrometer zircon crystal to about 4.4 billion years ago — a discovery that could help scientists understand the geological conditions of early Earth.


The crystal was found in a region north of Perth, Australia known as the Jack Hills in 2001, Reuters reported.


The scientists published their findings in the science journal Nature Geoscience on Feb. 23; in the publication, Valley and his team explained their use of a technique called atom-probe tomography to date the crystal. The technique allows scientists to image and assess single atoms of lead to determine the age of a rock with increased accuracy.


Earth is thought to be around 4.54 billion years old, but according to fossil records, no evidence of life has been found prior to 3.5 billion years ago. Even the oldest rocks before this discovery were about 3.8 million years old.


This gap in rock formations and life accounts for about 600 million years during which scientists knew very little about the state of early Earth. Still, it's often thought to have been "hell-like" with a magma ocean, according to John Valley, a professor in the Department of Geoscience at the University of Wisconsin-Madison, who led the group of scientists.


Evidence like this zircon crystal suggests that the Earth cooled to form the planet's crust earlier than previous rock evidence has suggested, within the first 100 to 200 million years. In that cooling process, steam from the atmosphere would have condensed to create oceans.


If oceans were present, it could've been possible that microbial life also existed, Valley told Reuters — a wildly different portrait of our planet than a nightmarish, lava-covered Earth.


Wow............this could also mean that life  may have also evolved a whole lot earlier too, if these conditions with water and minerals were conducive to primitive life form development.

Tuesday, January 22, 2013

Overpopulation Needs to Taken Seriously

Causes need champions.  Whether it be Band Aid and Bob Geldof for the famine work that commenced around the Ethiopian famine in 1984, or even more recent examples of Bono and other celebrities as motivators of supporters and even drivers of the cause, across a wide spectrum of activities.

Overpopulation of our planet has always been a tricky issue in how to deal with it.  Is it real, will it affect the economic development and untimately the political ascendancy of countries or individuals, or will " I " be disadvantaged - a serious idea according to some.


Recently a US celebrity [ Alexandra Paul ] gave a talk to a TEDx meeting at Topango in California.  So who is she you might ásk as I did [ but I am not a TV or film media watcher]?  Check yourself here - http://en.wikipedia.org/wiki/Alexandra_Paul
  
Alexandra explains correctly that modern man first showed up on earth 200,000 years ago. By 1830 there were 1 billion people on the planet. Therefore, it took 200,000 years for humans to put the first billion humans on earth. The second billion we added in just 100 years. Now, we add 1 billion people every 12 years. And in 2011, the human population reached 7 billion people.

To give you an example of how fast the population grows, Bangladesh had a hurricane a few years ago that catastrophically killed 139,000 people. As a point for comparison, the population growth in Bangladesh is 139,000 new births every 2 ½ weeks!

In her talk, Alexandra says “forcing people to have fewer children doesn’t work. The fastest, most efficient way to stabilize the human population is to send girls to school and Empower women. And give everyone access to, and education on, birth control".

The talk concludes with her encouraging everyone not be afraid to talk about the overpopulation issue: "It is not about taking rights away, it is about giving opportunities to women, children and future generations".

A video of the talk - click here for video link.

Some consider that we are moving towards an unsstainable population on the planet Earth.  Others are less sure but whatever - discussing the issue and advocating sensible options is vital.  There is no doubt that history would indicate that the solution advocated by Alexandra Paul does have cred, and is increasingly the norm even in those regions of so called less development.  But part of that is also management of many simple diseases.  My own experience of working in less affluent regions is that most families have had some form of child mortality that was caused by easily fixed problems including gastro, measles, whooping cough and similar diseases that are preventable or can be fixed, as well as malaria and dengue [ at least manageable in simple ways to reduce problems].  

Where schooling for girls and education for women in general occurs then family size is regulated, and so population is moderated.

Is it a no brainer to work more towards the goal of female education?