Personal Blog - GS Virdi

Wednesday, December 11, 2013

What is Perfluorotributylamine (PFTBA)

New greenhouse gas discovered by Canadian researchers

by Saravanan Jawahar

Montreal, Dec 11 (TruthDive): Scientists in Canada on Tuesday announced a discovery of a new greenhouse gas that is 7,100 times more powerful than carbon dioxide at warming the Earth.

Scientists at the University of Toronto said in a statement the substance -- perfluorotributylamine (PFTBA) "is the most radioactively efficient chemical found to date, breaking all other chemical records for its potential to impact climate". They said the newly discovered greenhouse gas has unprecedented potential to warm the Earth, and said the chemical has been lurking in the atmosphere for decades.

Since the mid-20th century, PFTBA that does not occur naturally, has been used for various applications in electrical equipment and is at present used in chemically and thermally stable liquids marketed as heat transfer agents and for electronic testing.

PFTBA breaks all records for possible impacts on the climate, said the researchers at the University of Toronto's department of chemistry. The study said PFTBA was 7,100 times more powerful at warming the Earth over a 100-year time span than CO2.

There are no known practices that would remove or destroy PFTBA in the lower atmosphere so it has a very long lifetime, possibly hundreds of years, and is destroyed in the upper atmosphere.

Time is combined in the global warming potential metric as different compounds stay in the atmosphere for different lengths of time, which defines how long-lasting the climate impacts are.

Angela Hong, who was a part of the discovery team, said PFTBA is awfully long-lived in the atmosphere and it has a very high radioactive efficiency; the result of this is a very high global warming potential. Measured over a 100-year timeframe, a single molecule of PFTBA has the equivalent climate impact as 7100 molecules of CO2.

Dr Drew Shindell, a climatologist at NASA's Goddard Institute for Space Studies, said this is a great warning to all that this gas could have a very large impact on climate change – if a lot of this substance is present. As not a lot of this substance is present now, we do not have to worry about it at present, but, he said, we have to make sure it does not grow and become a very large contributor to global warming.

Tuesday, December 10, 2013

Overconfident Sri Lankans want to be spanked

Suriyapperuma, Sri Lankan MP calls Manmohan Singh an 'old fool' and India a 'bug'

by Karthiyayini

 

Colombo,Dec 10 (TruthDive): Suriyapperuma, a senior Sri Lankan ruling party MP, told Parliament last week that India was 'no more a giant' but 'only  a bug'.

Suriyapperuma vented out his ire on Indian Prime Minister Manmohan Singh for choosing to skip Commonwealth Heads of Government Meeting (CHOGM) held in Sri Lanka in November this year.

85-year-old Suriyapperuma is  a National List member of the Sri Lankan Parliament  and belongs to the Sri Lanka Freedom Party. Octogenarian Suriyapperuma who is four years older than Manmohan Singh called Dr Singh an 'old man' and a 'fool.'

Sunday Times reported that while speaking during the Committee Stage debate of the Ministry of External Affairs, Suriyapperuma said that the Indian PM Manmohan Singh though promised to attend CHOGM, did not come and that he has been rejected by his own people at the elections held at five Indian states. He further ranted that the old man (nakiya) will be thrown out of office soon and that this fool has gone and created a new state in India now.

The Sunday Times observed  that no ruling party member or minister, including the Minister of External Affairs GL Peiris, who were present at the time Suriyapperuma made these outrageous remarks, appeared to be disturbed.

However, opposition United National Party (UNP) MPs, Ravi Karunanayake and Ranjan Ramanayake said that "stupid statements" made by ruling party members were antagonising foreign countries and the way some government MPs spoke of foreign dignitaries was "shameful".

The UPFA parliamentarian did not spare  British Prime Minister David Cameron either; he called him  a "political ghost" who was losing clout in the U.K and called him a  'scoundrel'. He also directed his ire at U.S. President Barack Obama calling him a black man  whose skull will be smashed by the combined powers of Russia and China.

He promptly acknowledged Sri Lanka's friendship with China and remarked that if not for the weapons given by China and Pakistan, Sri Lanka would have lost the war.

It may be  recalled that the Minister for Public Relations Mervyn de Silva, had proposed marriage to Navi Pillay, UN High Commissioner for Human Rights when she visited Sri Lanka in August this year.

One would surely doubt if the high-profile ruling party ministers of Sri Lanka are caught by foot-in-mouth disease bug?

Source: Truthdrive.com