Tuesday, August 9, 2011

Climate change impacts on Germany(Europe)


Climate change impacts in Germany - what the IPCC 4th Assessment Report has found:
  • 4 deciduous tree species leaf-unfold and leaf- colour 1.1 to 2.3 days longer per decade (1951-2000) [1.3.5.1]. 
  • 10 spring phases (flowering, leaf-unfolding) 1.6 days/decade earlier (1951-2000) [1.3.5.1]. 
  • Alpine summit vegetation elevational shift, increased species richness on mountain tops (due to increased temperature) [1.3.5.2]. 
  • English Holly (Ilex aquifolium) poleward shift of northern margin due to increasing winter temperatures [1.3.5.2]. 
  • Phenology: Advance of stem elongation for winter rye (10 days) and emergence for maize (12 days) (1961-2000) [1.3.6.1] 
  • Phenology: Advance in cherry tree flowering (0.9 days/10 years), apple tree flowering (1.1 days/10 years) in response (-5 days/°C) to March/April temperature increase
    1951- 2000 [1.3.6.1] 
  • Phenology: Advance in beginning of growing season of fruit trees(2.3 days/10 years), cherry tree blossom (2.0 days/10 years), apple tree blossom (2.2 days/ 10 years) in agreement with 1.4°C annual air temperature increase 1961- 1990 [1.3.6.1]. 
  • In some river basins, e.g. the Elbe river basin, increasing flood riskdrives strengthening of flood protection systems by structural means, with detrimental effects to riparian and aquatic ecosystems [3.2]. 
  • The Alps could be one of the regions most affected by increase in year-to-year variability in summer climates and thus a higher incidence of heat waves and droughts. Mediterranean droughts would start earlier in the year and last longer(source:http://wwf.panda.org)

Climate change impacts on Spain(Europe)


Drought, desertification, fires and the retreat of its beaches, Spain is one of the countries in Europe most under threat from the effects of climate change. In the offices of Greenpeace in Madrid, the precise consequences for nature and the environment are being taken very seriously. For the environmental organization, climate change is the greatest ecological threat confronting Spain.
“The increase in temperature will be more important in Spain than it will be on a global scale, states Sarah Pidinatto, a Greenpeace officer in the Spanish capital. “It will have several serious consequences. First of all, the change in temperature will affect lifestyles in Andalusia, Murcia and Valencia. The number of days when temperatures will exceed 40° will increase, which will cause numerous health problems. Agriculture will also be affected, and temperatures in the sea will increase. The other consequence is the 20% reduction in precipitation in the southern part of Europe and the Mediterranean region. This will affect all of Spain, and in particular Valencia, Murcia and the west of Andalusia.”
The Spanish coast is often synonymous with holidays in the sun on fine sandy beaches. However, exploitation from tourism is putting great pressure on the coastal region. A report by the Ministry for the Environment predicts that Spanish beaches will retreat by 15 meters by 2050. Costa Brava, La Manga del Mar Menor and the coast of Valencia will be at particular risk.
source:(http://www.euranet.eu)

Climate change impacts on Srilanka(Asia)

COLOMBO, Apr 24, 2007 (IPS) - As the world prepares for yet another ‘scary' report by the United Nations panel on global warming and climate change, a Sri Lankan specialist in the group says Tamil rebels and government troops are actually fighting over land due to be submerged as sea-levels rise. 

''A major part of Jaffna and other northern areas (of Sri Lanka) will be submerged when the sea-level rises. So people are fighting and dying over areas that may soon not be there,'' Prof. Mohan Munasinghe, vice-chairman of the U.N.'s Intergovernmental Panel on Climate Change (IPCC), told IPS in an interview. 

Jaffna, seat of a revolt for an independent homeland for minority Tamils, lies on the northern tip of the island. Northern and eastern coastal areas, both claimed by the rebels as traditional Tamil homelands, are vulnerable to submersion as they are flatter than other coastal areas. 

The vulnerability of the north and east was highlighted during the Dec. 26, 2004 Asian tsunami when these areas bore the brunt of the damage caused by the killer waves that hit the island, following an undersea earthquake off the coast of Indonesia's Sumatra island. 

Munasinghe, known internationally for his work on energy and sustainable development, says climate change in Sri Lanka will have dire consequences on water, agriculture, health and the coast. "Already there are early signs of the impact which would assume serious proportions by 2025," he said. "But unfortunately if the developed world doesn't do anything to mitigate the impact, there's little Sri Lanka can do." 

IPCC is releasing the third volume of its 4th assessment report in Bangkok on May 4. Since the first one came out in 2001, IPCC reports have been closely scrutinised by policymakers across the world, but action has been painfully slow in tackling the problem of greenhouse gases (GHGs) and carbon dioxide emissions that are said to cause global warming. 

The biggest culprits are the United States and Europe through their fossil fuel industry and its powerful lobbies. 

Providing a peek review of the forthcoming report Munasinghe, a former World Bank who has advised several Sri Lankan governments on energy issues, said among the key messages would be the need to take immediate action to mitigate or reduce GHGs. 

The report will also focus on the methods and technologies to make this early start and provide clear signals to industry to develop the technologies to make such a change. "Industrialised countries should lead the way as they are the biggest polluters," he said, adding that the Europeans clearly recognised these concerns earlier this year. "Thus there is now some action in the developed countries," he said. 

The IPCC vice-chairman is frustrated at the general apathy of countries in dealing with global warming despite the fact that some of the best experts in the world prepare the reports on global warming. The latest one has contributions from 3,000 scientists. 

"No one takes it seriously because it is something that does not happen today or tomorrow. The biggest culprits are the rich countries...so it's difficult to take action," he said, adding that one of the weaknesses in the campaign is the inability of scientists to translate their jargon into language that is understood by everyone, including politicians. 

The world response to global warming has been very slow. When IPCC's first report, released in 1990, provided scientific evidence to show the existence of GHGs that can alter the climate, the public was sceptical. The second report dealt with the impact of GHGs, the impact on humans and need for mitigation. 

The third report in 2001 focussed on vulnerability and adapting to situations. It said even if there were zero emissions, what is already in the atmosphere would cause global warming and impact mostly on tropical countries, and thereby the poor. Experts say even in rich countries it is the poor that are affected by global warming - as the impact of Hurricane Katrina in the U.S. has shown. 

More than 80 percent of the emissions that cause climate change come from rich countries with lifestyles and development that cause the problems. The per capita emissions of countries like India or China, despite being large, are a mere 1/30th or 1/40th of what is emitted by the U.S. or Europe. 

Munasinghe says his argument, made during a presentation at the Earth Summit in Rio in 1992, that there is a strong need for integrating climate change and longer term issues into sustainable development strategies has become a reality today. "Sustainable development is the way out... starting with the industrial nations," he said. 

In the Sri Lankan scenario, population shifts where the country would have a bigger aging population in 20 years will exacerbate the problem since health is one area where the impact would be high. 

"Remember malnutrition and disease affects mostly children and older people. An aging population means there would be fewer people to carry the burden as well and all these would be vulnerable. Productivity will get affected because there are fewer young people," he said. 

Sri Lanka expects that over the next two decades the sea-level will rise by half a metre with dry areas becoming drier and wet areas becoming wetter, leading to floods in some areas and drought in others. 

Earlier this month, Rajendra Pachauri, chairman of IPCC, said at a press conference in New Delhi that up to 60 million coastal people in the low-lying areas of South Asia could be displaced by global warming by the end of the 21st century. 

Especially vulnerable, said Pachauri, are the coastal metropolises of Mumbai and Kolkata which are already showing signs of strain on their drainage systems and infrastructure. 

India could be most seriously affected by scantier rainfall and by glacier melt in the Himalayas which supply the river systems on which agriculture depends, Pachauri said, adding that glacier melt could also seriously affect China. 

According to Pachauri the impact of global warming on India, where almost 700 million people are dependent on agriculture, would be really serious and trigger mass migration of rural communities to urban areas in search of alternate livelihoods. 

The most frightening prospect for Sri Lanka is also in agriculture. ‘'We have done some studies with the meteorological department which show higher temperatures and less water,'' said Munasinghe. ''This will result in paddy farming output falling by 20-30 percent in the next 20 to 30 years. The output will begin to drop gradually over the next few years.'' 

The other issue is that of equity, says Munasinghe, in the wet zone where the hill country is filled with tea bushes - the tea crop will increase making those workers well off. While paddy is cultivated mostly by farmer-families in which the cost of production is much higher than the selling price, tea workers are assured of their monthly wages even if tea companies find production costs higher than selling prices. Tea is generally a profitable crop. 

He says in the hotter areas mosquitoes will be more rampant and even move into the more hilly areas. Thus the incidence of vector-borne diseases like malaria and dengue in endemic areas could increase in addition to diseases triggered by poor quality water that accompanies droughts



(Source:http://ipsnews.net/news.asp?idnews=37463)

Climate change impacts on Bangladesh(Asia)


1. Disappearing seasons of Bangladesh
There are six seasons in Bangladesh which are disappearing due to climate change. Summer & rainy seasons are prolonging, whereas winter season is shrinking. Autumn and Dewy seasons are vanishing. Spring season has already been vanished.
2. Infrastructures
In Bangladesh, 93 disasters have occurred over the period from 1991 to 2000 and incurred the loss of US$ 590 crore in agriculture and infrastructure sectors.
3. Saline water intrusion
About 830,000 ha cultivable land has damaged by saline water intrusion from Bay of Bengal.
4. River bank erosions
Near about 106,300 ha river bank has eroded over the period from 1982 to 1992 due to climate change induced hazards especially floods.
5. Drought/too little water during the dry season
About 21.8 tones of rice damaged due to drought over the period from 1973 to 1987.
6. Floods/too much water during monsoon
Rice, about 23.8 lack tones has damaged due to flood over the period from 1973 to 1987.
Future Projection of Climate Change Impacts in Bangladesh
1. Crop production & food security
Rainfall patterns are changed due to climate change – crops yields are expected to drop significantly. Crop production will decrease 30% in 2100. Production of rice & wheat will reduce 8.8%, and 32% within 2050 respectively.
2. Salinity
There are 13% areas are salinity at Bagerhat, Khulna & Sathkhira, the southwestern coastal districts of Bangladesh at present which will increase 16% in 2050 and 18% in 2100.
3. Coral bleaching
Corals are vulnerable to thermal stress. If the sea surface temperature increases 1-3° C then corals bleaching will occur frequently.
4. Mangrove forest
About 75% area of mangrove forest, Sundarban (60007 Sq. km) will submerse if the sea level will increase 45 cm. If the sea level rise 1 m then the islands of Bay of Bengal and whole Sundarban will destroy including its fauna & flora.
5. Fisheries:
• Death rate of shrimp’s fingerlings will increase if the water temperature is more than 32°C (CEGIS).
• Diseases of fish may increase.
• Carps culture may reduce due to saline water intrusion in the ponds and open water bodies.
• Production of sweet water fish will shrink and extinct if the sea level rise.
6. Health:
• More floods are contaminating water. Increasing water borne diseases such as cholera, diarrhoea etc.
• More droughts are decreasing food production. Increasing malnutrition.
• More greenhouse gases are increasing air pollution. Rising respiratory diseases.
• Rise of temperature will favor for pest and pathogen that will increase dengue, malaria, diarrhea etc.
• Injuries, disabilities, psychosocial stress and death are becoming severe for more floods, fires, droughts, heat waves & cyclones.
• High salinity in water will affect human health.
7. Climate refugee or migration
In Bangladesh every year, rivers engulf enormous agriculture fields and homesteads, makes the peoples homeless. Those who have no way to live in the locality, migrate to urban areas and live in slum with unhygienic conditions.
8. Sea level rise
If the sea level rise -
• Low-lying non-embankment coastal area may be completely inundated.
• It will increase the risk of coastal salinity.
• Scarcity of saline free drinking water will increase highly.
• Current agricultural practices will change.
9. Increased evaporation:
Global average water vapor concentration and precipitation are projected to increase during the 21st century.
10. Biodiversity
If the global temperature rises by 2° Centigrade, 30% of all land species will be threatened by an increased risk of extinction.
(source:http://www.climatefrontlines.org/?q=en-GB/node/426)

Climate change impacts on Afganistan(Asia)


Current Climatic Trends 

Afghanistan is a mountainous and very dry country located in the arid sub‐tropics at
9‐37° north of the equator.  Afghanistan has an arid and semi-arid continental climate
with cold winters and hot summers.  The lowland plains in the south of Afghanistan
experience extreme seasonal variations in temperature, with average summer (JJA)
1
temperatures exceeding 33°C and mean winter (DJF) temperatures of around 10°C.
Much of the country is at very high altitude and experiences much lower temperatures all
year round, with average summer temperatures not exceeding 15°C, and winter
temperatures below zero in the highest regions.
• Afghanistan is currently suffering the most severe drought in living memory.  The country
is characterised by large areas with little to no precipitation; that which does occur falls
mostly as snow on high mountains from winter storms (of Mediterranean origin) between
November and April with peaks in February/March. The snow season varies considerably
with elevation. The Asian summer monsoon system helps to keep rainfall low over
Afghanistan. Dust storms are a significant part of the climate system associated with
northerly winds in warm months.
• Despite the absence of good long term climatic records, available data and trends from
neighbouring countries indicate that mean annual temperature has increased by 0.6°C
since 1960, at an average rate of around 0.13°C per decade. Increases have been most
pronounced during the autumn (SON), with increases at an average rate of 0.29°C per
decade and a significant increase in the number of exceptionally hot days and nights

Changes in precipitation regimes tend to vary more between regions than temperature.
Mean rainfall over Afghanistan has decreased slightly (at an average rate of 0.5mm per
month (or 2 percent per decade) since 1960. This is mainly due to decreases of around
2.7mm per month (6.6 percent per decade) in spring (MAM) rainfall.  The proportion of
rainfall that occurs in heavy events has not changed with any consistent trend since
1960.






Changes in Temperature
• Current models indicate significant warming across all regions of Afghanistan with
average predicted increases in temperature of between 2C and 6.2C by 2090s
dependent on global emissions scenarios.  Warming is most rapid in spring/summer with
this trend being marked in the north and the central plains of Afghanistan.  These
increases are also consistent with the broad regional observed temperature trends in
Central Asia.  All projections indicate substantial increases in the frequency of days and
nights that are considered ‘hot’ in current climate, especially during summer months.
• Up to 2030s, the amount of warming is not sensitive to global emission scenarios. The
mean annual temperature is projected to increase by 1.4 to 4.0°C by the 2060s,
compared to 1970-1999 averages.
• By 2090, the range of projections by the 2090s under any one emissions scenario is
around 1.5 to 2.5°C. The range of potential annual temperature increases is noticeably
influenced by global emission scenarios
Source:(livelihoodsrc.dfid.gov.uk)


Sunday, August 7, 2011

Facts about climate change


Did you know .....
• Average temperatures have climbed 1.4 degrees Fahrenheit (0.8 degree Celsius) around the world since 1880, much of this in recent decades, according to NASA's Goddard Institute for Space Studies.
• The rate of warming is increasing. The 20th century's last two decades were the hottest in 400 years and possibly the warmest for several millennia, according to a number of climate studies. And the United Nations' Intergovernmental Panel on Climate Change (IPCC) reports that 11 of the past 12 years are among the dozen warmest since 1850.
• The Arctic is feeling the effects the most. Average temperatures in Alaska, western Canada, and eastern Russia have risen at twice the global average, according to the multinational Arctic Climate Impact Assessment report compiled between 2000 and 2004.
• Arctic ice is rapidly disappearing, and the region may have its first completelyice-free summer by 2040 or earlier. Polar bears and indigenous cultures are already suffering from the sea-ice loss.
• Glaciers and mountain snows are rapidly melting—for example, Montana's Glacier National Park now has only 27 glaciers, versus 150 in 1910. In the Northern Hemisphere, thaws also come a week earlier in spring and freezes begin a week later.
• Coral reefs, which are highly sensitive to small changes in water temperature, suffered the worst bleaching—or die-off in response to stress—ever recorded in 1998, with some areas seeing bleach rates of 70 percent. Experts expect these sorts of events to increase in frequency and intensity in the next 50 years as sea temperatures rise.
• An upsurge in the amount of extreme weather events, such as wildfires, heat waves, and strong tropical storms, is also attributed in part to climate change by some experts.

source:(http://news.nationalgeographic.com)


  • Since 1970, temperatures in UK homes have increased by 5°C.
  • If everyone in the UK installed three energy-saving light bulbs, we would save enough energy to power the UK's street lighting for a year.
  • By 2020, entertainment, computers and gadgets will account for almost half of electricity used in the home.
  • All of our ovens, microwaves, kettles and other kitchen cooking appliances use up enough electricity in a year to run the UK's street lighting for six years.
  • Each Briton uses about 150 litres of tap water a day, but if you include the amount of water embedded within all the food and products we consume we actually use about 3,400 liters every day.

Have you found what you were searching?Please comment

HTML Comment Box is loading comments...