Climate changes Dilyana Grozeva teacher of biology and health education Georgi Izmirliev High school, town Gorna Oryahovitsa Climate: It is a set of meteorological elements that characterize the average state of the atmosphere of a place Climate change: The current climate change: A stronger than expected, sooner than anticipated Warming on Earth is a fact - the Earth's surface temperatures in the 20 th century have risen by 0,6 C, and 90 years proved to be the hottest decade of the last century The facts: Raising the temperature by 1880 to our days with ~ 1C The facts: Warming in the Arctic and Antarctica and the melting ice caused sea level rise and flooding of low fertile lands and coasts Change the quantity of rainfall on the ground, leading to frequent unpredictable floods or prolonged droughts Scientists are almost unanimous that global warming is the result of emissions of carbon dioxide and other gases which cause the Greenhouse Effect A change of global temperature and Carbon Dioxide The Greenhouse Effect: The observations show an increased temperature of the low strata of the atmosphere in comparison with thermal radiation of the planet The Greenhouse Effect: Main greenhouse gases GasContribution rates 55% Carbon dioxide 39% Ozone2% Methane2% Nitrogenous oxide2% Concentrations of greenhouse gases in the atmosphere: Major sources of emissions: The consequences: Running out of the stock of fresh water Destruction of ecosystems and loss of biodiversity Reduction of volume and productivity of arable land Destruction of forests due to fires because of drought and high temperatures Increasing of deserts and melting of mountain glaciers Global climate change has an impact on human health Rising of the level of the World ocean (at an average 0.2cm /year) Earthquakes Fires And more, and more The near future of Bulgaria Desertification of arable agricultural land Very high risk of flooding caused by the rapid melting of mountain snow Sharp increase in fires and almost complete destruction of Bulgarian forest Emergence and spread of new diseases and pests to our region And more, and more What is being done globally: Increasing the share of renewables Reducing the harmful emissions Increasing energy efficiency Collaboration How to help? Remember: Everyone is part of the solution!!! Use energy saving lamps Recycle Turn off the lights that you dont use Maximize your home heating - use insulations Switch off electrical appliances from the on/off button Use environmentally friendly transport Use rechargeable batteries How to help? Try to use renewable energy Make sure that your new appliance is energy class A or A+ Announce against deforestation Explain all this to your friends Plant a tree Together we will succeed !!! In preparing the presentation materials are used by