Tony Tyler, director general and chief executive officer of the International Air Transport Association, a global industry trade body, says the European Union-Emission Trading Scheme is a regional programme, which cannot be imposed on the rest of ther world.
High taxes, high airport costs, poorly developed air navigation and high cost of operations makes investment unappealing.
The representative body of the global airline industry has asked governments of countries like India, which have huge unrealised potential in aviation, to use the sector as a strategic asset and devise policies that spur competitiveness.
Observing that India's airport regulator AERA allowed a whopping 346 per cent hike in Delhi airport charges, IATA Director General and CEO Tony Tyler said 'this is clearly unacceptable'.
The conference, being attended by some 700 aviation leaders including chiefs of airlines and aircraft-makers, is discussing issues like aviation safety, environment, distribution and financial sustainability among others.
In India, the aviation industry contributes five per cent of gross domestic product, around Rs 291 crore (Rs 2.91 billion) in tax contributions, provides four million jobs and another seven million jobs through tourism and related activities.
Tough measures need to be taken to make Air India "survive and thrive", global airlines body IATA said on Wednesday, asking the government to take a cue from the merger of two state-owned Japanese carriers which slashed jobs and operations to come out of bankruptcy.
Images from Sunday's action in the English Premier League.
Champions Manchester City could only muster a 2-2 Premier League draw with Brighton & Hove Albion on Saturday.
The week is being termed as a 'black week' for the aviation industry.
High taxes on the jet fuel, which goes up as high as 40 per cent in some states, coupled with higher airport charges in the form of user development and airport development fee, which have cascading effect on the air fares, have had a negative impact on the domestic passenger demand in India.
Given all the risks in the world today, including the political instability, economic uncertainty, public health emergence and terrorism, there is not much buffer to absorb a significant change for the worse in the operating environment
The most significant growth was recorded by carriers in the Asia-Pacific and West Asian regions at 5.9 per cent and 12.9 per cent respectively. Carriers in these regions captured the vast majority of the global increase (93 per cent).
Cash-strapped Air India should be run by professionals even if the government partially off-loads its stake to investors to keep it off-the-ground, a top global aviation professional has said.
On the international air traffic front, Asia-Pacific airlines recorded an increase in demand of 5.5 per cent compared to November 2012.
Domestic capacity across the eight global markets climbed 6.5 per cent while the seat factor grew by 0.8 percentage points to 83.6 per cent during this period, IATA said.
The Indian government's decision in 2012 to allow foreign direct investment in civil-aviation sector up to 49 per cent has enthused new airlines to launch their operations and capitalise on country's 1.2 billion population, a pre-statement to the Global Aerospace Summit said.
A quick look at the winners of the 80th Annual Golden Globe awards.
In India currently, Air India, Jet Airways and its subsidiary JetLite are members of the IOSA and conform to the safety standards set by this audit on a regular basis.
Like Air India, there have been recent cyber attacks on some major airlines, including one in Canada, and a global airlines alliance
While Harry Styles got emotional when he took home the Album Of The Year award for Harry's House, Adele could not hold back her tears even though her boyfriend Rich Paul had told her not to cry if she won.
In a thriller at Anfield, a weakened Liverpool side came back from the brink to beat Leicester City on penalties after a 3-3 draw, setting up a semi-final against Arsenal.
A ministry spokesperson said he wasn't aware of the development.
All eyes were on Indian model Neelam Gill, who is riding the waves of stardom.
"The best team won, we struggled from the beginning and we couldn't deal with their long balls. Usually, you press the ball to win it, but this was different. They defended so deep and so well," City coach Pep Guardiola told the BBC.
Images from the English Premier League matches played on Saturday.
Images from the UEFA Champions League matches played on Wednesday night.
Manchester United may still be some way from the team that won 13 league titles under Alex Ferguson, but a combination of exciting attacking players and suspect defense means they are regaining the club's reputation for great entertainment.
The 67th annual Primetime Emmy Awards took place at the Microsoft Theater in Downtown Los Angeles, California, on September 20.
The 65th Emmys will be held on September 22 in Los Angeles.
News of all that's transpired on and off the football field
Nilanjana S Roy compiles a list of the most eagerly awaited books next year.