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Climate change!

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Climate change is occurring globally and affecting Greece. Average temperatures in Greece have increased by 0.4-0.6属C per decade since 1961-1990, with the largest increases observed in summer temperatures. Models project further warming of 7-10属C in Greece by 2100 under high emissions scenarios. This additional warming would exacerbate heat waves which have already increased in intensity and frequency. Related effects include altered precipitation patterns, rising sea levels, and increased risks of wildfires and natural disasters like flooding. Climate change poses serious challenges for agriculture, natural ecosystems, and communities throughout Greece.

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CLIMATE CHANGE!
What is climate change? Climate change is a change in the pattern of weather, and related changes in oceans, land surfaces and ice sheets, occurring over time scales of decades or longer
Climate change!
The consequences of changing the natural atmospheric greenhouse are difficult to predict, but certain effects seem likely: On average, Earth will become warmer. Some regions may welcome warmer temperatures, but others may not. Warmer conditions will probably lead to more evaporation and precipitation overall, but individual regions will vary, some becoming wetter and others dryer.
A stronger greenhouse effect will warm the oceans and partially melt glaciers and other ice, increasing sea level. Ocean water also will expand if it warms, contributing further to sea level rise. Meanwhile, some crops and other plants may respond favorably to increased atmospheric CO2, growing more vigorously and using water more efficiently. At the same time, higher temperatures and shifting climate patterns may change the areas where crops grow best and affect the makeup of natural plant communities.
THE ROLE OF HUMAN ACTIVITY In its Fifth Assessment Report, the Intergovernmental Panel on Climate Change, a group of 1,300 independent scientific experts from countries all over the world under the auspices of the United Nations, concluded there's a more than 95 percent probability that human activities over the past 50 years have warmed our planet. The industrial activities that our modern civilization depends upon have raised atmospheric carbon dioxide levels from 280 parts per million to 400 parts per million in the last 150 years. The panel also concluded there's a better than 95 percent probability that human-produced greenhouse gases such as carbon dioxide, methane and nitrous oxide have caused much of the observed increase in Earth's temperatures over the past 50 years. 流 侶 凌粒留溜留 留 粒僚凌 僚略虜侶 亮竜 略隆竜旅留 流侶 CC BY-NC-ND
Climate change!
Climate change Greece Air temperature changes until now Annual temperature over the period 19611990 showed a trend of statistically significant warming over land in south-east Europe of approximately 0.40.6 属C per decade. In the middle of the 50s a cooling period started in northern Greece and progressively extended also in the southern regions of the country where it started to be detected in the beginning of the70s.
The lowest average annual temperatures in Greece occurred in the decade of 1970 up to the beginning of 1980, due mainly to the very cold summers and autumns. However, during the last years of the 90s (while a little earlier in some meteorological stations), a progressive increase of temperature was observed. This seems to be due to a more intensive warming during the summer period .
Climate change!
Air temperature changes in the 21st century According to climatic simulations for 2100, in the case of the IPCC 2 scenario (up to 250% more greenhouse gas emissions in 2100 compared with 1961-1990), the mean maximum temperature over the entire Eastern Mediterranean is projected to increase. In July the mean maximum temperature in the Balkan countries is projected to increase by up to 12C compared to current values. 流 侶 凌粒留溜留 留 粒僚凌 僚略虜侶 亮竜 略隆竜旅留 流侶 CC BY-NC
In Greece, the increase is in the order of 7-8C in southern regions (including the area of Athens), while in central and northern Greece the increase is higher and varies between 8 and 10C. In June and September the increase of the maximum temperature is slightly lower, varying from 6 up to 8C in Greece. 流 侶 凌粒留溜留 留 粒僚凌 僚略虜侶 亮竜 略隆竜旅留 流侶 CC BY-NC-ND
Climate change!
In Greece, as it was also the case of Spain, the frequency of heat waves in the 90s was about three times higher than the one of the three previous decades. However, there are no signs of a similar reverse trend in the frequency of cold extremes. The data from both stations of Athens and Corfu present statistical important increasing trends with respect to the duration of heat waves, during the summer period as well as on annual basis, while the occurrence of cooling waves during winter as well as on annual basis becomes much less frequent. 流 侶 凌粒留溜留 留 粒僚凌 僚略虜侶 亮竜 略隆竜旅留 流侶 CC BY-NC-ND
The time series from the other stations do not show a certain trend or they show negative trends with respect to the duration of heat waves. In the eastern Mediterranean, the intensity, length and number of heat waves have increased by a factor of six to eight since the 1960s.
Climate change!
CLIMATIC CHANGES IN GREECE The issue of climate change can be seen as one of the most burning issues in the world. However, in Greece, it is easy to understand that the whole planet is affected, and our country is no exception.
SOME CLIMATIC CHANGES THAT TOOK PLACE IN GREECE Last Christmas, in the "heart" of the winter season the sunshine was intense (even for the Greek data), accompanied by very high temperatures. Because of the high temperatures we have an increase in fires in the summer. The truth is that global warming does not cause fires. However it aggravates the conditions and increases the risk of fire. 流 侶 凌粒留溜留 留 粒僚凌 僚略虜侶 亮竜 略隆竜旅留 流侶 CC BY 流 侶 凌粒留溜留 留 粒僚凌 僚略虜侶 亮竜 略隆竜旅留 流侶 CC BY
Climate change!
In recent years, many tornadoes have been observed, a rare phenomenon for Greece: strong rainfall throughout the year causes serious disasters in crops and private properties.
Climate change!
Climate changes observed in our area Floods in Magoula
Droughts
Made by Gymnasio-L.T. Magoulas Karditsas

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Climate change!

  • 2. What is climate change? Climate change is a change in the pattern of weather, and related changes in oceans, land surfaces and ice sheets, occurring over time scales of decades or longer
  • 4. The consequences of changing the natural atmospheric greenhouse are difficult to predict, but certain effects seem likely: On average, Earth will become warmer. Some regions may welcome warmer temperatures, but others may not. Warmer conditions will probably lead to more evaporation and precipitation overall, but individual regions will vary, some becoming wetter and others dryer.
  • 5. A stronger greenhouse effect will warm the oceans and partially melt glaciers and other ice, increasing sea level. Ocean water also will expand if it warms, contributing further to sea level rise. Meanwhile, some crops and other plants may respond favorably to increased atmospheric CO2, growing more vigorously and using water more efficiently. At the same time, higher temperatures and shifting climate patterns may change the areas where crops grow best and affect the makeup of natural plant communities.
  • 6. THE ROLE OF HUMAN ACTIVITY In its Fifth Assessment Report, the Intergovernmental Panel on Climate Change, a group of 1,300 independent scientific experts from countries all over the world under the auspices of the United Nations, concluded there's a more than 95 percent probability that human activities over the past 50 years have warmed our planet. The industrial activities that our modern civilization depends upon have raised atmospheric carbon dioxide levels from 280 parts per million to 400 parts per million in the last 150 years. The panel also concluded there's a better than 95 percent probability that human-produced greenhouse gases such as carbon dioxide, methane and nitrous oxide have caused much of the observed increase in Earth's temperatures over the past 50 years. 流 侶 凌粒留溜留 留 粒僚凌 僚略虜侶 亮竜 略隆竜旅留 流侶 CC BY-NC-ND
  • 8. Climate change Greece Air temperature changes until now Annual temperature over the period 19611990 showed a trend of statistically significant warming over land in south-east Europe of approximately 0.40.6 属C per decade. In the middle of the 50s a cooling period started in northern Greece and progressively extended also in the southern regions of the country where it started to be detected in the beginning of the70s.
  • 9. The lowest average annual temperatures in Greece occurred in the decade of 1970 up to the beginning of 1980, due mainly to the very cold summers and autumns. However, during the last years of the 90s (while a little earlier in some meteorological stations), a progressive increase of temperature was observed. This seems to be due to a more intensive warming during the summer period .
  • 11. Air temperature changes in the 21st century According to climatic simulations for 2100, in the case of the IPCC 2 scenario (up to 250% more greenhouse gas emissions in 2100 compared with 1961-1990), the mean maximum temperature over the entire Eastern Mediterranean is projected to increase. In July the mean maximum temperature in the Balkan countries is projected to increase by up to 12C compared to current values. 流 侶 凌粒留溜留 留 粒僚凌 僚略虜侶 亮竜 略隆竜旅留 流侶 CC BY-NC
  • 12. In Greece, the increase is in the order of 7-8C in southern regions (including the area of Athens), while in central and northern Greece the increase is higher and varies between 8 and 10C. In June and September the increase of the maximum temperature is slightly lower, varying from 6 up to 8C in Greece. 流 侶 凌粒留溜留 留 粒僚凌 僚略虜侶 亮竜 略隆竜旅留 流侶 CC BY-NC-ND
  • 14. In Greece, as it was also the case of Spain, the frequency of heat waves in the 90s was about three times higher than the one of the three previous decades. However, there are no signs of a similar reverse trend in the frequency of cold extremes. The data from both stations of Athens and Corfu present statistical important increasing trends with respect to the duration of heat waves, during the summer period as well as on annual basis, while the occurrence of cooling waves during winter as well as on annual basis becomes much less frequent. 流 侶 凌粒留溜留 留 粒僚凌 僚略虜侶 亮竜 略隆竜旅留 流侶 CC BY-NC-ND
  • 15. The time series from the other stations do not show a certain trend or they show negative trends with respect to the duration of heat waves. In the eastern Mediterranean, the intensity, length and number of heat waves have increased by a factor of six to eight since the 1960s.
  • 17. CLIMATIC CHANGES IN GREECE The issue of climate change can be seen as one of the most burning issues in the world. However, in Greece, it is easy to understand that the whole planet is affected, and our country is no exception.
  • 18. SOME CLIMATIC CHANGES THAT TOOK PLACE IN GREECE Last Christmas, in the "heart" of the winter season the sunshine was intense (even for the Greek data), accompanied by very high temperatures. Because of the high temperatures we have an increase in fires in the summer. The truth is that global warming does not cause fires. However it aggravates the conditions and increases the risk of fire. 流 侶 凌粒留溜留 留 粒僚凌 僚略虜侶 亮竜 略隆竜旅留 流侶 CC BY 流 侶 凌粒留溜留 留 粒僚凌 僚略虜侶 亮竜 略隆竜旅留 流侶 CC BY
  • 20. In recent years, many tornadoes have been observed, a rare phenomenon for Greece: strong rainfall throughout the year causes serious disasters in crops and private properties.
  • 22. Climate changes observed in our area Floods in Magoula