Home' Position : Position Feb Mar 2015 Contents Upcoming Events
10-12 March: Locate15; Brisbane, Qld.
16-18 March: Association of Public
Authority Surveyors Conference;
Coffs Harbour, NSW. www.apas.org.au.
29 April - 1 May: Power of Maps
Conference; Canberra, ACT. www.
4-5 May: ANZ Emergency & Disaster
Management Conference; Gold Coast,
11-15 May: 36th International
Symposium on Remote Sensing of
Environment (ISRSE); Berlin, Germany.
27-28 May: GeoBusiness 2015;
London, UK. http://geobusinessshow.
29 June - 10 July: Pivotal Master
Class; Brisbane, Qld. http://pivotal2015.org.
7-10 July: GI_Forum; Salzburg, Austria.
14-16 July: IGNSS 2015; Gold Coast,
19 August: GeoNext 2015; Melbourne,
19-20 Oct: International Conference
on Geoinformation Technology for
Natural Disaster Management and
Rehabilitation; Chiang Mai, Thailand;
19-22 Oct: GSDI12 World Conference:
Realising Spatially Enabled Societies;
29 Nov-3 Dec: 5th Session of the
International Conference Geotunis
2010; The Use of GIS & Remote Sensing
for Sustainable Development; Tunis,
Recently compiled data has shown
that 2014 was the hottest the
world has experienced on record.
The image above shows the global
temperature values as compared to the
1981-2010 average, and it’s clear to see
that it was a hot one.
The map is compiled from data taken
from the US National Oceanic and
Atmospheric Administration’s (NOAA)
National Climatic Data Centre.
In 2014, the combined land and ocean
surface temperature was 0.69°C above the
20th century average, making the year
the warmest since records began in 1880.
The ocean alone was record warm, while
the land alone was fourth warmest. Five
months set new records for warmth: May,
June, August, September, and December.
October tied for record warmest.
One terrifying statistic is that except
for 1998, the 10 warmest years on record
have occurred since 2002. The world is
getting hotter, and we’re doing little to try
and stop it.
The observed increases in global
average surface temperature and
atmospheric carbon dioxide have been
much faster in recent decades than the
natural changes of previous millennia,
and levels are now higher than at any time
for hundreds of thousands of years prior.
Perhaps more frightening is that the
temperature changes that humans are
experiencing on land are much smaller
than those felt by the oceans. More than
90% of the additional energy stored in
the climate system since 1970 has gone
into ocean warming – it’s the remainder
that has melted the ice, and warmed the
continents and atmosphere – so it’s the
oceans that have been suffering the main
thrust of the changes. This is resulting
in mass-bleaching of coral reefs, ocean
acidification, the changing of currents and
tides, and the migration or decimation of
What’s interesting about the above
map is that it doesn’t use the 20th century
baseline for average temperature that
most reporting does. Why? The short
answer is because of global warming.
The Earth’s average surface
temperature has risen significantly
enough over the 20th century that if
a map compared any recent monthly
average to the 20th-century average for
that month, virtually the entire globe
would appear in shades of red.
Such a map would be less meaningful
for helping people understand how the
current month or year compares to their
recent (or even lifetime) experience of
climate, which is often more interesting
and relevant to people than how the
current period compares to the 20th-
So, rather than mapping current
conditions compared to the 20th-century
average, the NOAA has decided to show
them compared to the most recent
complete 30-year period (1981-2010).
The NOAA has a host of other
interesting climatic maps and
infographics that are well worth a look.
For more 2014 global climate
statistics from NOAA, visit http://1.usa.
The warming Earth
4 position February/March 2015
Links Archive Position Dec Jan 2015 Position Apl May 2015 Navigation Previous Page Next Page