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Showing posts with label CO2 emissions. Show all posts
Showing posts with label CO2 emissions. Show all posts

Tuesday, July 02, 2019

Sharp rises in levels of methane

Sharp rises in levels of methane – which is a powerful greenhouse gas – have strengthened over the past four years. 

Some researchers believe the spread of intense farming in Africa may be involved, in particular in tropical regions where conditions are becoming warmer and wetter because of climate change. 

Rising numbers of cattle – as well as wetter and warmer swamps – are producing more and more methane, it is argued. 

If nothing can be done about the rise in methane levels, then even more cuts will have to be made in CO2 emissions. 

Tuesday, January 22, 2019

BRINGING DOWN ELECTRICITY USE WITHOUT LOSING COMFORT

In recent decades, the world’s use of fossil fuels (coal, oil, gas) is generating enough CO2 to heat our oceans equivalent to three to six Hiroshima bombs persecond, SECOND AFTER SECOND. With huge impacts on life on earth..

We have to bring down our use of fossil fuels as fast as possible. Governments cant do it because people want quality of life which currently seems to be linked to use of fossil fuels. We have to demonstrate that we can maintain our quality of life while reducing use of fossil fuels.

40 % of all CO2 emissions are caused by electricity generation from fossil fuels. We have tried out these 25 methods to gradually reduce our electricity use :

Home Lighting
  1. In the early 90s, we moved to using 60 W filament bulbs instead of 100 W.
  2. In mid-90s, we replaced nearly all our filament bulbs with CFLs, thus reducing per light load to 18 and 36 W from 60 W. Some bulbs stayed in special fittings and lamps as CFLs did not then come in those sizes.
  3. We were slow to move to LEDs unfortunately, because a lot of our early CFLs, then quite expensive, had had to be replaced for inferior quality. So we were waiting for assured quality. Also, we could not then find yellow light LEDs and could not stand white light. But now for the last 2 years or so, we buy only LEDs and are gradually replacing all bulbs as the past ones die out. All heavy use lights already have LEDs.
  4. We find our selves becoming more economical in the use of lighting. One light suffices where two were put on habitually earlier.
  5. Outside light is utilized to the maximum by hanging transparent plastic curtain on the doors which get a lot of light. This plastic curtain keeps out the cold air in winter and hot air in summer, while letting in light.
  6. Window glasses are curtained off for the night only at sleep time as until then they continue letting in outside light.
  7. In consultation with our neighbours, we keep less of the lights of our common corridor on.
  8. Two of our torches are solar.
Cooling home in summers
  1. Our mini honeycomb pad cooler uses just 90 W instead of the 350 W and above, for mid-sized woodwool coolers.
  2. We have just learnt that slower speeds in fans use much less electricity than full speed, so we will now use them at more optimum levels.
  3. We have just learnt about and started replacing old induction motor 90 W fans with new electronic motor 28 W fans – whenever old fans go out of order and cannot be repaired.
  4. Our AC use is 10 % compared to our neighbours and only on the hottest days for short durations. The coolers carry on cooling after the AC is shut off. Coolers even circulate the cool air to a second room if both are occupied.
  5. All sun receiving areas of the house are shaded during summer with green nursery cloth. Tirpals / roller blinds / plastic curtains are used, preferably outside the sun receiving windows, so the glass does not heat up.
Heating Home in Winters
  1. We have maximized sun use when it is comfortable to be outside. Our balcony / garden are equipped with electric point for laptop, table and chair, so one can spend long hours outside.
  2. Blowers and Oil Radiators use 1000 or 2000 W at a time. In contrast halogen rod heaters use 125-400 W rods for heating and one can use multiple rods for faster heating.
  3. But as we have become more conscious of what global warming implies, we find ourselves dressing up even more warmly at home – as a result, this winter we have not needed to use heaters at all.
  4. Hot water is used only for bathing, not for washing of hands or washing utensils. Ofcourse, someone unwell would use the hot water stored in the geyser for washing hands, or an especially dirty utensil would be washed in hot water.
Electronics
  1. All computers are now switched off for the night as are spike busters connecting them to power sources.
  2. When we are getting up from our computers, we are more conscious to immediately put them to sleep while we are away.
Use of Appliances
  1. Having become more economical in our use of electricity, we now use the full capacity of an oven while baking rather than partially. For example, all shakarkandi (sweet potato) is baked together in larger quantitiy at a go.
  2. Washing Machines are ofcourse used only at full load.
  3. Hot things are not put inside the Fridge but allowed to come to room temperature before putting them in the fridge.
  4. Frozen foods are taken out some time before so they can attain room temperature before use.
  5. In summer, water from the fridge is mixed with normal temperature water in thermoses to get the right temperature for drinking water. The fridge does not have to be opened day long for drinking water then, thus conserving on electricity use. 
  6. My Dad and Us both have a floor each in Delhi, and uptil now, fridges were left on in both floors when my dad was away to nainital and we were in bhiwadi. We now shifted our fridge stuff that needs preserving onto a single tray that is placed in my father’s fridge, so one fridge is left on when we are away, not two.
As a result, we seemed to have more than halved our electricity bills to about 850-950 rs. a month.
However, there are lots of frontiers to reach still to reduce our use of electricity and we will work towards them :
  • The fridge is left on when we are away. We will apply our mind to see if we can shut it off when away, without wasting the food.
  • We want to use solar for more of our electricity needs and have been gradually exploring it.

Friday, October 19, 2018

Energy from Renewables..

The following are some of the highlights of what i have been reading lately on global warming :

  • In November 2016, the Arctic was already experiencing extraordinary anomalies. Temperatures were 20C above normal.
  • “The consequences of failing to keep the temperature below 1.5 C will be to wilfully condemn hundreds of millions of the poorest citizens of Earth to certain deaths from the severe impacts of climate change.”
I started looking for some of the ways forward for countries to bring down Co2 emissions.. there are dozens of ways, and among them are :
  • Retrofitting existing buildings can save 70-90% of the energy used to heat and cool them. Such a move also tackles fuel poverty, creates local jobs and reduces deaths from cold. 
  • Switching transport from fossil fuels to electricity powered by renewables, cuts emissions but also removes the air pollution that is responsible for an epidemic of lethal respiratory disease. In Europe alone, about half a million people suffer premature deaths each year due to air pollution.
  • In 2015, Denmark generated 140 percent of its electricity requirements on one particularly windy day from wind turbines alone, the excess of which was exported to Germany, Norway and Sweden. In 2016, Germany came remarkably close to being completely run by clean energy for a day due to a surge in wind and solar power. 
  • But the Central American nation of Costa Rica beat all the European countries with its landmark achievement in green energy in 2016. For more than 250 days the country used zero fossil fuels and drew its electricity from hydropower plants, wind turbines and geothermal installations. Thanks to such efforts, the notion that renewables can run a whole country is no longer unfathomable. In fact, it is now an ideal to aspire to.
  • In November 2016, many, mostly low-income countries, from Bangladesh to Tanzania and Guatemala, committed to switching entirely to renewable energy by 2030-50 at the latest. China is installing more new wind energy capacity in a single year than the UK has in total.

Tuesday, May 08, 2018

India is a World Leader in Carbon Neutrality where Airports are Concerned...

But this story seems to have been missed not only by the Indian press, but the international press too.. 

What is Carbon Neutrality in the context of Airports ?
Boeing 757 Air Europe
San Diego Air & Space Museum Archives
Budapest airport became the latest airport to be accredited carbon neutral in April this year. As an industry site explains

"Airports are at different points on this journey to become cleaner and more efficient. As the centrepoints of a complex web of aircraft movements, technical operations and surface access transport, airports can address their CO2 emissions in a variety of ways. These can include better insulation and energy efficiency, switching to green energy sources, investing in hybrid, electric or gas-powered service vehicles, encouraging employees, passengers & visitors to use public transport, working with airlines & air traffic management to reduce runway taxiing times and implement green landing processes and much more."
Convair 880 165-62 Swissair in flight 13Mar64
San Diego Air & Space Museum Archives
Another industry site says : "Not only did these airports measure their carbon footprint (Level 1), managed and reduced their emission (Level 2) and engaged partners and clients to do the same (Level 3), they are now offsetting their own (carbon) emissions" (that is Level 3+ : Carbon Neutral level which the Budapest Airport just achieved).

But thats not the story the media may have missed. What they have missed - or chosen not to highlight anyway, are the factoids below. 
Air plane over Jamuna Future Park 2014 /
Aashaa / CC-BY-SA 3.0

India is a World Leader in Airport Carbon Neutrality 


  • Out of 39 Carbon Neutral Airports in the world, four are Indian ! The airports in Delhi, Hyderabad, Bangalore and Mumbai have been accredited as carbon neutral. 
  • Delhi Airport was the first airport to be accredited carbon neutral in the whole of Asia Pacific !
The developed nations - other than Europe, havent been that interested
  • Even today, there is not a single airport that has been declared carbon neutral in China, Japan, Korea, Singapore, or any of the South East Asian Tigers - or even in some of the richest countries in the world in the Middle East - UAE, Saudia Arabia, and others. 
  • ONE airport in Australia has been declared carbon neutral - none in New Zealand.
    Air Canada Airbus A319-114 on approach to LAX
    / Timo Breidenstein /GNU Free Documentation License.
  • In the Asia-Pacific region, other than India and Australia, only one other country's airport has a carbon neutral accreditation - Jordan, which is a poor country, with per capita GDP one-fourth that of the world average. 
  • In fact, entire continents are able to showcase just one airport each as carbon neutral accredited - North America, South America and Africa !
Boeing 767 over Mount Rainier, circa 1980s
Seattle Municipal Archives / CC-BY-SA 2.0
  • The country with the largest number of airports in the world - the USA (in North America), has just ONE airport accredited carbon neutral. 
As a Continent, Europe leads in Airport Carbon Neutrality
  • 30 out of 39 airports worldwide to have received carbon neutrality are in Europe. 10 of  these airports are in a single country - Sweden. 
  • India has the most airports accredited for carbon neutrality after Sweden. The next countries with the most airports accredited are the UK and Turkey - three each.
The History of the Programme

The Airport Council International (ACI), Europe Annual Congress in 2007 saw Europe’s airports commit to reducing their CO2 emissions, with the ultimate goal of becoming carbon neutral. ACI EUROPE commited to developing a tool to help airports achieve this goal. In 2009, it launched the Airport Carbon Accreditation programme. Within months, Stockholm Arlanda Airport became the first airport in the world to achieve the highest level of accreditation: 'Neutrality'.

Air New Zealand Boeing 737-219 (ZK-NAR), 1979
Daniel Tanner / CC-BY-SA 4.0
In 2011, Airport Carbon Accreditation was extended to airports in the Asia-Pacific region, in partnership with ACI ASIA-PACIFIC. In 2012, Swedavia became the first national airport group to achieve full carbon neutrality across its suite of 10 airports in Sweden. Airport Carbon Accreditation was extended to Africa in 2013 in partnership with ACI AFRICA. Also in 2013, Airport Carbon Accreditation was judged one of the top 3 low carbon projects for Europe. 

The programme was FINALLY launched in North (and South) America in 2014, in partnership with ACI-NA, a full five years behind Europe, and 3 years after Asia Pacific.