Balloon release

A balloon race

A balloon release is a ceremonial event in which a number of hydrogen or helium-filled balloons are unleashed into the sky.

Balloon releases can be done as a prayer ceremony, to create a photo opportunity, to raise awareness of a cause or campaign, or as a competitive long-distance race. There is considerable opposition to, and legislation against, balloon releases, due to environmental, flight safety, and wildlife conservation issues.

Massive balloon releases gained popularity during the 1980s, and fell out of popularity following research on the biopersistence, distance-travelled, and gastronomical effect on animals. [1]

Motivations

Akin to a Sky lantern ceremony of Chinese tradition, a group balloon release can serve as a quiet, prayerful group activity at a funeral or solemn occasion. Unlike sky lanterns, which float down after a short time, helium or hydrogen balloons quickly rise to heights in which they can no longer be seen. Balloon releases are also used in celebration, as a substitute to confetti, in order to avoid an immediate mess.

A balloon race or balloon flight contest is a competition wherein the competitors attempt to send balloons as far as possible. It can be compared to a rubber duck race. Postcards are attached to the balloons which are then released. The flight of the balloons cannot be influenced by the competitors. Instead, success in the contest is dependent on the wind conditions and on the location in which the balloon lands. The contest depends on the goodwill of passers-by to find the balloons and return the postcards. A prize may be awarded to the person whose balloon travels the furthest.

Trajectory

Helium balloons are claimed to reach a height of anywhere up to ten kilometres.[2] At such heights, atmospheric pressure is dramatically reduced, so a helium balloon expands as it rises. With temperatures so low, the balloon material is also expected to freeze. Eventually as the material is stretched too thin, the balloon is likely to pop suddenly. An estimated 90-95% of released balloons rise to an altitude of 5 miles where the temperature and pressure is such that they burst into small fragments.[1]

It is also possible for a balloon, under the right circumstances, to reach equilibrium, and remain suspended in the air for some time, until the helium slowly diffuses out of the balloon.

Noted balloon releases

Balloonfest '86

Main article: Balloonfest '86

A balloon release in 1986 by the charity United Way Services of Cleveland, in Ohio, USA, was a fund-raising attempt to break the world record for the number of balloons in a single release. 1.4 million balloons were released, but an approaching weather front caused them to return to earth, covering the city in balloons, causing cars to crash, and hindering the coast guard in a rescue mission.[4] It contributed to the deaths of two sailors on Lake Erie (the wife on one victim sued the organisers, and settled out-of-court),[5] resulted in injuries to horses, and caused traffic accidents.[6] A runway at Burke Lakefront Airport had to be closed.[5] The Guinness Book of Records no longer accepts balloon release records.

Opposition

Balloon remains in the branches of a chestnut tree

Environmental

A number of organisations (for example, in the United Kingdom, these include the Marine Conservation Society,[7] the Royal Society for the Prevention of Cruelty to Animals,[7] the Tidy Britain Group,[7] the National Farmers Union,[7] and the RSPB[8]) oppose balloon releases, because of the visual impact of the fallen, deflated balloons, and the risk of harm to wildlife and domestic animals which they pose.[7] For these reasons, balloon releases are prohibited in some jurisdictions.[9][10]

Most consumer balloons are made of biodegradable Latex, which degrade in several weeks, at a similar rate to organic matter. Mylar balloons degrade much slower.[1]

In 1989, after a condemnation of the practice by the scientific community, the Canadian government decided to cancel the planned release of tens of thousands of balloons in Ottawa to mark Canada Day.[1]

Flight safety

Within many countries written permission is often required from the relevant airspace regulatory authority. In the UK this would be the Civil Aviation Authority, for releases over a certain number of balloons.

Helium scarcity

Helium is a natural atmospheric gas, but as a land-resource, it is limited. As of 2012 the United States National Helium Reserve accounted for 30 percent of the world's helium, and was expected to run out of helium in 2018.[11] Some geophysicists fear the world's helium could be gone in a generation[12] For this reason, balloon releases are seen as a wasteful use of this limited resource.

See also

References

  1. 1 2 3 4 5 "Balloon releases: pollution factsheet" by the Marine Conservation Society. Retrieved 27 February 2016.
  2. ↑ <What happens to helium balloons when they float into the sky?- Surfing Scientist
  3. ↑ "Farmer wins compensation after Red Nose Day balloon kills cow - Telegraph". The Daily Telegraph. 2011-05-05. Retrieved 23 May 2012.
  4. ↑ Gunther, Shea (21 May 2014). "What could go wrong? Releasing 1.4 million balloons over Cleveland, Ohio". Mother Nature Network. Narrative Content Group. Retrieved 2 July 2016.
  5. 1 2 Kroll, John (2011-08-15). "Balloonfest 1986, the spectacle that became a debacle". The Plain Dealer. Retrieved 11 May 2014.
  6. ↑ O'Malley, Michael (26 September 2011). "25 years ago, thousands watched a balloon launch on Public Square". The Plain Dealer. Retrieved 5 May 2014.
  7. 1 2 3 4 5 UK Rivers Network; Balloon releases: pollution factsheet
  8. ↑ RSPB Marine and coastal policy
  9. ↑ "Mass balloon releases banned from Council owned land" Plymouth City Council, England, news release
  10. ↑ Releases of 20 or more balloons are prohibited in the state of New South Wales, Australia, under section 146E of the NSW Protection of the Environment Operations Act 1997
  11. ↑ @tdnewcomb (2012-08-21). "There's a Helium Shortage On — and It's Affecting More than Just Balloons Time August 21, 2012". Newsfeed.time.com. Retrieved 2013-09-16.
  12. ↑ The world is running out of helium: Nobel prize winner

External links

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