Come and join this blog in a journey to explore a different way to "learn how to learn" about nature and reality out there. As the World in which we live is ever highly complex, rapidly changing, and full of crises, the "old" ways of knowing/learning must be challenged. As Einstien's widely cited argument states:
"Problem can not be solved at the same level of awareness that created it."
Saturday, 7 July 2007
Subscribe to:
Post Comments (Atom)
2 comments:
Oi, achei teu blog pelo google tá bem interessante gostei desse post. Quando der dá uma passada pelo meu blog, é sobre camisetas personalizadas, mostra passo a passo como criar uma camiseta personalizada bem maneira. Se você quiser linkar meu blog no seu eu ficaria agradecido, até mais e sucesso. (If you speak English can see the version in English of the Camiseta Personalizada. If he will be possible add my blog in your blogroll I thankful, bye friend).
Climate change is one of the most maximum; environmental, social and economical long-term pressure that the world has been facing on.
Based on climate change and global warming (evaporation will increase due to warmer oceans its cause of heavier rainfall, sea level will rise, some part of geographical location will be flooded and some parts will face to drought, soil erosion, ecological productivity, glacier retreat, forest fire, economic negative affect) and the world will face many problems maybe some of them not forecasted yet.
The largest causes of global warming are the productions of green house gases (GHG), especially CO2, population growth, human activities, wastes, lack of efficient agriculture, forestry projects, no implementation of policies and inability of understanding (luck of global brain and cooperation)
Between 1970 and 2004, global discharges of CO2, CH4, N2O, etc; based on their global warming potential have increased by 70%, from 28.7 to 49 Giga tones of carbon dioxide. The emissions of these gases have increased at different rates.CO2 release have grown (1970 - 2004) by about 80% and created 77% of total GHG production in 2004.
Global climate change and green house gas productions have been coming from the (energy supplies, transports, industries) sectors, land uses, agriculture grew misuse of forestry, solid waste and waste water, profit of some developed countries, inequality in global sustainable development based on the use of natural resources, irresponsibility of world communities to environment, inefficient use of natural resources, use of destructive materials such as (nuclear, Napalm… bombs, …) during last wars and experiments.
The threats of global warming are not so easy to solve and it is too difficult for human to manage it, as soon as possible due to currents needs. World communities, UN agencies and environmental experts all together are trying to find solution for this phenomenon. Some of the suggested solutions are as below:
• Encourage the developed countries to accept completely, truthfully and practically the world communities and UN policies and agreements due to environment and climate change.
• Improve supply and distribution efficiency; fuel changing from coal to gas; nuclear power; renewable heat and powers (hydropower, solar, geothermal wind, and bio energy); early applications of Carbon Capture and Storage (CCS).
• Generation of fuel or bio fuel efficient vehicles; higher efficiency aircraft, advanced electric and hybrid vehicles with more powerful and reliable batteries, modal shifts from road transport to rail; non-motorized transport (cycling, walking).
• Integrated design of commercial buildings including technologies, such as solar PV integrated in buildings, efficient lighting and day lighting; more efficient electrical appliances and heating and cooling devices; improved cook stoves, insulation; and alternative refrigeration fluids.
• Advanced energy efficiency; CCS for industries and material recycling and substitution; and a wide selection of process-specific technologies.
• Improved crop and land management to increase soil carbon storage; improved rice cultivation techniques and livestock and fertilizer management;
• Forest management; reduced deforestation; harvested wood product management.
• Waste incineration with energy recovery; composting of organic waste; controlled waste water treatment; recycling and waste minimization.
• Encourages corporations, local and regional authorities, NGOs and civil groups to adopt a wide variety of voluntary actions. These voluntary actions may limit GHG emissions, stimulate innovative policies, and persuade the uses of new technologies
Climate change is a challenge and the vulnerability varies with geographic location, time, and social, economic and environmental conditions; that the world faces. A range of policies, including those on climate change, energy security, sustainable developments, at least equality and accesses to lives first needs and cooperation between developed, developing and poor countries, have been effective in reducing GHG productions in different sectors in the world wide. They could be initially solutions. (IPCC)
Post a Comment