Showing posts with label greenhouse gases. Show all posts
Showing posts with label greenhouse gases. Show all posts

Thursday, 4 July 2019

Greta Thunberg - Speeches - Excerpts

Greta Thunberg (16), Climate activist from Sweden

On March 15, 2019, about 1.4 million students in 123 countries joined school strike for climate justice. I am going to continue school striking until Sweden is in line with The Paris Agreement.  Richest 10% of world population emits about half of greenhouse gases. Richest 1% emits more than the poorest 50%. About 100 companies emit approximately 71% of our total emissions of CO2. If the richest 10% of the world’s population would lower their emissions to that of the average citizen in EU, then the world’s emissions of CO2 would be cut by about one third. Our biosphere is being sacrificed so that rich people in countries like mine can live in luxury. It is the sufferings of the many which pay for the luxuries of the few.
  • People tell success stories but their financial success has come with an unthinkable price tag.
  • We need to start living within the planetary boundaries. This will be drastic change for many but not for most. Because most of the world population is already living within the planetary boundaries. It is minority who are not. 
  • The main solution however is so simple that even a small child can understand it. We have to stop the emissions of greenhouse gases. And either we do that or we don't. 
  • People are not aware that there is such a thing as a carbon budget. If you regularly fly around the world, eat meat and dairy and are living a high carbon lifestyle then that means you have used up countless of people’s remaining carbon budgets. Carbon budgets that they will need in their everyday life, for generations to come. Those whose carbon budgets we are stealing are the ones least responsible and the ones who are going to be affected the most by this crisis.
  • We must change almost everything in our current societies. The bigger your carbon footprint is, the bigger your moral duty. The bigger your platform the bigger your responsibility. 
  • I want you to act as if you would in a crisis. I want you to act as if the house was on fire, because it is. 
  • We need to keep the fossil fuels in the ground and we need to focus on equity. And if solutions within this system are so impossible to find then maybe we should change the system itself. We have run out of excuses and we are running out of time. We have come here to let you know that change is coming whether you like it or not. The real power belongs to the people! 
  • Rich countries like Sweden need to start reducing emissions by at least 15% every year to reach the 2 degree warming target. 
  • We are in the midst of the sixth mass extinction, and the extinction rate is up to 10,000 times faster than what is considered normal, with up to 200 species becoming extinct every single day. Erosion of fertile topsoil, deforestation of our great forests, toxic air pollution, loss of insects and wildlife, the acidification of our oceans. These are all disastrous trends being accelerated by a way of life that we, here in our financially-fortunate part of the world, see as our right to simply carry on. 
  • Our house is falling apart, and our leaders need to start acting accordingly, because at the moment they are not. If our house was falling apart, you would change almost every part of your behavior, as you do in an emergency. If our house was falling apart, you wouldn't hold three emergency Brexit summits and no emergency summit regarding the breakdown of the climate and environment. 
  • No one ever speak about the aspect of equity clearly stated everywhere in the Paris agreement, which is absolutely necessary to make it work on a global scale. That means that rich countries like mine (Sweden) to get down to zero emissions, within 6–12 years, so that people in poorer countries can heighten their standard of living by building some of the infrastructure that we have already built, such as hospitals, electricity, clean drinking water and so on.
  • The climate crisis has already been solved. We already have all the facts and solutions. All we have to do is to wake up and change. 
  • Today we use 100 million barrels of oil every single day. There are no politics to change that. There are no rules to keep that oil in the ground. So we can’t save the world by playing by the rules. Because the rules have to be changed. Everything needs to change. And it has to start today. 
  • Since our leaders are behaving like children, we will have to take the responsibility they should have taken long ago. 
  • If burning fossil fuels was so bad that it threatened our very existence, how could we just continue like before? Why were there no restrictions? Why wasn't it made illegal? 
  • I was diagnosed with Asperger's syndrome OCD and selective mutism. That basically means I only speak when I think it is necessary. Now is one of those moments. 
  • If the emissions have to stop, then we must stop the emissions. Either we go on as a civilization or we don't. We have to change. We need a system change rather than individual change. But you can not have one without the other.
  • Rich countries like Sweden need to start reducing emissions by at least 15 percent every year. And that is so that we can stay below a two degree warming target. IPCC have recently demonstrated, aiming instead for 1.5 degrees Celsius would significantly reduce the climate impacts.
  • People keep doing what they do because the vast majority doesn't have a clue about the actual consequences of our everyday life.
  • No one is acting as if we were in a crisis. Even most climate scientists or green politicians keep on flying around the world, eating meat and dairy. 
  • What we do or don't do right now will affect my entire life and the lives of my children and grandchildren. What we do or don't do right now, me and my generation can't undo in the future. 
  • We children usually don't do as you tell us to do, we do as you do. And if you adults don't care about my future, neither do I. 


Tuesday, 2 July 2019

Climate crisis is real

After more than a century and a half of industrialization, deforestation, and large scale agriculture, quantities of greenhouse gases in the atmosphere have risen to record levels not seen in three million years. As populations, economies and standards of living grow, so does the cumulative level of greenhouse gases emissions. Climate change is potentially irreversible threat to human societies. Climate change is shifting of weather patterns that threaten food production, rising sea levels that increase the risk of catastrophic flooding, the impacts are global in scope and unprecedented in scale. Without drastic action today, adapting to these impacts in the future will be more difficult and costly.
  • The concentration of GHGs in the earth’s atmosphere is directly linked to the average global temperature on Earth.
  • The most abundant GHG, accounting for about two-thirds of GHGs, is carbon dioxide (CO2), is largely the product of burning fossil fuels. Carbon dioxide (CO2) emissions account for around 80% of global warming.
  • In 2013, the UN Intergovernmental Panel on Climate Change (IPCC) in its report made a categorical conclusion: climate change is real and human activities are the main cause.
  • It also estimates and provides a CO2 budget for future emissions to limit warming to less than 2°C. About half of this maximum amount was already emitted by 2011.
  • Oceans have warmed, the amounts of snow and ice have diminished and the sea level has risen. 
  • The sea ice extent in the Arctic is shrinking. Given current concentrations and ongoing emissions of greenhouse gases, it is likely that the end of this century that global mean temperature will continue to rise. The world’s oceans will warm and ice melt will continue. Most aspects of climate change will persist for many centuries, even if emissions are stopped.
  • The leading irreversible changes in the planetary climate system, may already have been reached or passed. Mountain glaciers are in alarming retreat and the downstream effects of reduced water supply in the driest months will have repercussions that transcend generations.
  • In October 2018 the IPCC issued a special report on the impacts of limiting global warming to 1.5°C would require rapid, far reaching and unprecedented changes in all aspects of society. While previous estimates focused on estimating the damage if average temperatures were to rise by 2°C, this report shows that many of the adverse impacts of climate change will come at the 1.5°C mark. 
  • A number of climate change impacts could be avoided by limiting global warming to 1.5ºC.
  • Limiting global warming to 1.5°C would require “rapid and far-reaching” transitions in land, energy, industry, buildings, transport, and cities. Global net human-caused emissions of carbon dioxide (CO2) would need to fall by about 45% from 2010 levels by 2030, reaching ‘net zero’ around 2050. This means that any remaining emissions would need to be balanced by removing CO2 from the air.
  • Arctic permafrost is melting decades earlier than the worst-case scenarios threatening to unlock vast amounts of methane, a greenhouse gas.
UN Secretary-General António Guterres called on governments to stop building new coal plants by 2020, cut greenhouse emissions by 45% over the next decade and overhauling fossil fuel-driven economies with new technologies like solar and wind. He said the world is facing a grave climate emergency and  even if Paris climate accord promises are fully met, the world still faces a catastrophic 3-degree temperature rise by the end of the century. Guterres urged to halve greenhouse emissions by 2030 and reach carbon neutrality by 2050. He suggested taxing major carbon-emitting industries and polluters, ending the subsidization of oil and gas, and halting the building of all new coal plants by next year. Cutting emissions to zero would be challenging and spell the end of petrol and diesel cars, as well as gas boilers. People will have to fly less, waste less and eat less meat. The average footprint for people in India is 1.73 metric tons; for the industrial nations is about 11 metric tons; worldwide carbon footprint is about 4 metric tons; The worldwide target to combat climate change is 2 metric tons.

Low carbon lifestyle

Global warming can lead to irreversible changes in the delicate balance that exists in the planet’s climate and life systems. It is a growing crisis with large scale implications on mortality, health, economics and security. All of us will be affected, irrespective of economic status or nationality. We have still not reached a point of no return and the most dangerous climate changes can still be avoided. We need to make climate friendly choices in everyday actions in the use of electrical appliances, transport, paper, water, etc. A low-carbon lifestyle reduces greenhouse gases and saves resources. Many people don't know a lot about climate change, but then there are some people who know but who don't care. It is reported that the 2015 UN Climate Change Conference (COP 21 or CMP 11) held in Paris, France, has emitted about 300,000 tons of CO2.
  1. Consume less energy from fossil fuels (petroleum, gas and coal).
  2. Use energy efficient lights, fans and other electrical appliances.
  3. Turn off lights and fans when not in use.
  4. Switch from a desktop to a laptop.
  5. Go out for a couple of hours everyday instead of watching TV or computer.
  6. Avoid using hot water, wherever possible.
  7. Go solar where ever possible.
  8. Buy clothes when it is a must.
  9. Choose cotton and silk clothes. Organic cotton is even better.
  10. Donate unwanted clothes to charities.
  11. Buy local food products.
  12. Choose organic and seasonal foods.
  13. Avoid meat and dairy.
  14. Use organic foods to reduce use of fertilizers and pesticides.
  15. Don't waste food, energy, water etc.
  16. Select natural products with less processing and packaging.
  17. Eat more vegetables and fruits.
  18. Travel only when it is absolutely necessary.
  19. Avoid car usage where ever you can.
  20. Use small and fuel efficient cars.
  21. Drive car in a fuel efficient manner.
  22. Use public transportation or shared vehicles.
  23. Walk or cycle over short distances.
  24. Avoid air travel.
  25. Never travel by business class or first class.
  26. Travel by direct flights, as far as possible.
  27. Travel by train for over night journeys.
  28. Use video conferencing and avoid long distance journeys.
  29. Use paper only when it is a must.
  30. Plant trees.
  31. Conserve water. Use no more than 10 liters for bathing.
  32. Harvest rain water.
  33. Never use single use plastic carry bags, water bottles, teacups etc.
  34. Ensure used plastics are disposed off for recycle/reuse.
  35. Stop dying hair and other body lotions.
  36. Buy only essentials.
  37. Be low on consumption.
  38. Repair and postpone replacements.
  39. Eliminate unnecessary items in every aspect of living.
Individual efforts may seem like drops in the ocean. The impacts from the positive changes in lifestyles by millions of people will make significant contributions towards a more climate friendly planet. 

Could you live a low carbon life? Meet the people who already are. 


Whatever you do may seem insignificant to you, 
but it is most important you do it - Mahatma Gandhi

The difference between what we do and what we are capable of doing
would suffice to solve most of the world's problems - Mahatma Gandhi


Monday, 3 September 2018

Flying is bad for the planet

  • Flying may be a large portion of your carbon footprint. The aviation industry accounts for 11% of all transportation-related emissions in the United States. Take one round-trip flight between New York and San Francisco, and you’ve generated about 0.9 metric tons of carbon dioxide per person. That is equivalent of 20% of the greenhouse gases that your car emits over an entire year. 
  • For perspective, the global average was about five tons of carbon dioxide per person in 2013.
  • Carbon footprint is defined as the amount of greenhouse gases and specifically carbon dioxide emitted by a person's activities or a product's manufacture and transport, during a given period.
  • A typical passenger vehicle emits about 4.6 metric tons of carbon dioxide per year. In addition to carbon dioxide, automobiles produce methane and nitrous oxide from the tailpipe and hydro fluorocarbon emissions from leaking air conditioners. The emissions of these gases are small in comparison to carbon dioxide; however, the impact of these emissions have a higher global warming potential than carbon dioxide.
  • About 20,000 planes are in use around the world, serving three billion passengers annually. By 2040, more than 50,000 planes could be in service, and they are expected to fly more often.
  • The most effective way to reduce your carbon footprint is to fly less often. The longer the distance, the more efficient flying becomes, because cruising requires less fuel than other stages of flight. So it’s certainly better to fly cross-country than to drive solo. If you’re taking a short trip, it may be better to drive.
  • Flying nonstop can help. About 25% of airplane emissions come from landing, taxiing and taking off. 
  • When you buy carbon offsets, you pay money toward replanting trees, which absorb carbon dioxide from the atmosphere.
  • To offset the almost 0.9-metric-ton carbon footprint of a single passenger traveling from New York to San Francisco, Sustainable Travel International, which runs offset program, offers two choices: Donate $8.95 to a wind farm in Texas or donate $10.75 to a forest conservation program in Peru.
  • The emissions associated with flying in business class are about three times as great as flying in economy class. In business class and first class, seats are bigger, so fewer people are being moved by the same amount of fuel. A first-class seat could have a carbon footprint of nine times as an economy one. Economy passengers have something to be happy about: smaller carbon footprints.
  • The bio fuel is estimated to cut at least 60% of greenhouse gas emissions compared to regular jet fuel. It cuts the emissions used to make the fuel as well as the emissions from burning it.
  • Researchers say that airplane crashes kills about a thousand people annually, whereas plane emissions kill about ten thousand people each year. About 80% by cruising emissions at high altitudes and 20% due to take off & landing emissions causing cardiovascular and respiratory diseases. 
  • Airplane pollution deaths at 10,000 a year still represent a small share. Emissions from ships kill an estimated 60,000 people a year, according to a 2007 study. The annual total death toll from air pollution is about a million, according to the UNDP.

Public transportation must be subsidized and encouraged in every form, especially if it is using electricity. Usage of personalized transportation must be restricted, discouraged and penalized. Business class & first class air travel should be discouraged and penalized. Pollution control norms for automobiles, industries etc must be strictly enforced. Environment safeguarding awareness must be promoted and encouraged.