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I'm 22 and I'm student of 4th year of Tourism and Leisure. My home university is in Poland however now im on Erasmus Exchange in Peniche, in Portugal, where I enjoy a lot:). I'm coming from Croatia, but living in Poland for over 16 years. But Croatia is the place where i adore coming back, and to my home town which is located near Adriatic Sea.

Sunday 15 January 2012

About the environmental issues on Ted Talk Website!


Johan Rochstrom, leader scientist form Sweden who work on the Stockholm Resilience Centre, gave a speach on July 2010 „Let the invironment guide our development” and video about it is possible to see on official Ted Talk website ‘www.ted.com’.

The leading subject and goal of a speech was to indicate that nowadays humanity live on the Planet Earth which is dominated and controlled by human beings who are putting enormous pressure on the planet. At the same time the speaker emphasizes that we as the first generation that owing to science and recent scientific discoveries are lucky to be well-informed and conscious how we straining the stability and capacity of the Planet Earth. Afterwards it is said how crucial is to undertake actions in order to implement transformative changes based on new ideas and innovative solutions, and it called that process “human scientific journey in global phase of sustainability”.

Nowadays it’s very noticeable how instead of supporting human development we are putting “quadruple squeeze” placing our Planet under the big pressure connected with civilization evolution.

Firstly, as it was mentioned in the video, these “quadruple squeeze” is related to rapidly growth of population. At the present the Planet Earth is inhabited by almost 7 billion of people while prognosis indicate that in few years it will be number exceeding 9 billion. Another interested fact which he took into considerations is that the biggest and the most negative environmental impact on our planet have the rich minority of people, what can appears as ridiculous. Because we can assumed that as the rich and influential people dispose with enormous amount of money, they have all rights, abilities and means to support in proper way development of our Planet. However, instead of  that they have already “jumped on the industrial bandwagon”  and disseminate the unsustainable lifestyle.
Secondly, climate and connected with it climate changes issues are the next biggest factors which put the pressure on the Earth Planet. It leads to greenhouse gasses affect, the increased of the temperature, destabilization of the west Antarctic Ice Sheet and the Greenland Ice Sheet and connected with that well-known see level rising.
Third mentioned factor is the ecosystem decline. Our ecosystem in rapidly and uncontrolled way is declining what was unthinkable 50 years ago.
The forth pressure in the surprisingly fact, of which most of people are not awareness, that our ecosystem did not behave "linearly, predictably, controllably" but is changing rapidly, violently and often  irreversible.  
Johan’s point of view is that we are entering in a new geological  era – the Antropocene, where human beings are leaders and conduct all the changes on the planet on a universal level.
He brought  considerable evidences of above-mentioned thesis, as carbon dioxide, deforestation, overfishing, land degradation, loss of species – all of them show how from the mid of 50th human enterprises rapidly expedited in results having an impact on the global level. Remarkably important is the fact what he said that we need to “bend the curves” what means stop accelerating human pressure on the Planet Earth! In order to bring closer significant of problem he gave an example of Coral Reef System as a one of the most diverse ecosystems on Earth, which under the pressure of overfishing, unsustainable tourism, climate changes it losses resilience (ability of self-recovering).
Many others examples there were called, such as: the Arctic – as the biom which regulates our planet suddenly had lost 30 – 40 % of its summer ice cover in recent years.

However there is still hope for our humanity. Johan with his colleagues have carried out researches which enable them to indicate “9 Planetary Boundaries”  within which we can find a solution just by giving them active back up and stewardship. Below I will specify all of them:
1. Climate changes
2. Depletion of stratospheric ozone
3. The Ocean acidification
4. Biogeochemical loading: the influence of the big nitrogen and phosphorus cycles on the planet
5. Land use changes
6. Rate of biodiversity loss
7. Global use of freshwater
8. Air pollution
9. Chemical pollution

All 9 points together create the “guide book” for human development without damaging the Planet Earth, which is considered to be self-regulation system complex.

Scientists estimate as well that fast human development have caused to transgressed 3 main boundaries already, which are: the rate of biodiversity loss, nitrogen, and climate changes.
In the end was mentioned that the key to deal with “turbulent era of global changes” is persistence and simultaneously cooperation of all countries in the world and their move in the same direction is necessary  to implement proper and positive changes. What’s more flexible and adaptive approach is essential as well. I agree with author of this speech, and what’s more I think that all of the targets can be achieved if human and society start to cooperate on global level, without focusing only on local scale but putting the attention on global scale.  




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