Global Warming and your role to stop it

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(c)Dr.Vinod Khanna, Dehra Dun Global Warming and Your Role to stop it ? Dr.Vinod Khanna <drvkhanna51@gmail.com>

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Global Warming ? “ Rise in the atmospheric temperature near the surface of the earth, ocean or mountains, above a verage measured and acceptable temperature ” Scientific reports indicate that global average air temperature near the earth’s surface rose 0.74 ± 0.18 oC during the 20th century . Climate models referenced by the IPCC project reports that global surface temperatures are likely to increase by 1.1 to 6.4 o C between 1990 and 2100.

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Immediate Impact Causes Melting of the Glaciers Resulting into the rise in level of ocean water . To the extent that small Islands Nations may get completely submerged.

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Immediate Impact Causes Melting of the Glaciers Resulting into the rise in level of ocean water . To the extent that small Islands Nations may get completely submerged.

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The green house gases play vital role in determining the earth’s average temperature Greenhouse Gases(GHG) ? 1. Carbon dioxide, 2. Water vapor, 3. Nitrous oxide, 4. Synthetic Chlorofluorocarbon (CFC) and 5. Methane What causes the abrupt rise in Atmospheric Temperature?

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(c)Dr.Vinod Khanna, Principal, UCTBS, Dehra Dun 1.Carbon Dioxide (CO2): Enters the atmosphere through burning of Fossil fuels (oil, natural gas, and coal), Solid waste, Trees and wood products, and also As a result of other chemical reactions (e.g., manufacture of cement). cycle. 4.Methane (CH4): Emitted during The production and transport of coal, natural gas, and oil. Methane emissions also result from livestock and other agricultural practices and By the decay of organic waste in municipal solid waste landfills 2.Nitrous Oxide (N2O): Emitted during Agricultural and industrial activities, as well as during combustion of fossil fuels and solid waste. 3. Water Vapour 5. Fluorinated Gases Hydro fluorocarbons, Fluorocarbons, and Sulphur hexafluoride are synthetic, powerful greenhouse gases emitted from a variety of industrial processes. Fluorinated gases are sometimes used as substitutes for ozone-depleting substances (i.e., CFCs, HCFCs, and halons). These gases are typically emitted in smaller quantities, but because they are potent greenhouse gases, they are sometimes referred to as High Global Warming Potential gases (“High GWP gases”).

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Present atmospheric concentration of CO 2 The present atmospheric concentration of CO 2 is about 383 ppm by volume and in future CO 2 levels are expected to rise from 541 to 970 ppm by the year 2100 due to ongoing burning of fossil fuels and land use change.

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(c)Dr.Vinod Khanna, Principal, UCTBS, Dehra Dun Industrial Pollution Vehicular Pollution Water Vapour Solid Waste Aviation Fuel Oil Refineries Refrigeration Gases Live Stock Fossil Fuel

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These gases ( GHG or High GWP gases ) allow sunlight to enter the atmosphere freely. When sunlight strikes the Earth’s surface, some of it is re-radiated back towards space as infrared radiation (heat). These GHGs absorb this infrared radiation and traps the heat in the atmosphere. THUS RESULTS INTO ABRUPT RISE IN ATMOSPHERIC TEMPERATURE

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These gases ( GHG or High GWP gases ) allow sunlight to enter the atmosphere freely. When sunlight strikes the Earth’s surface, some of it is re-radiated back towards space as infrared radiation (heat). These GHGs absorb this infrared radiation and traps the heat in the atmosphere. THUS RESULTS INTO ABRUPT RISE IN ATMOSPHERIC TEMPERATURE

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These gases ( GHG or High GWP gases ) allow sunlight to enter the atmosphere freely. When sunlight strikes the Earth’s surface, some of it is re-radiated back towards space as infrared radiation (heat). These GHGs absorb this infrared radiation and traps the heat in the atmosphere. THUS RESULTS INTO ABRUPT RISE IN ATMOSPHERIC TEMPERATURE

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Impact of Climate change ? Climate change is changing the species through: 1.Shifting habitat 2.Changes in distribution pattern of the fauna and flora. 3.Changing life cycles 4.Changes in reproduction timings 5.Changes in length of growing seasons for plants. 6.Development of new physical traits. 7.The increased extinction rates, that mainly affects i. Less mobile species, ii. Species confined to in highly fragmented habitats iii. Species requiring combinations of environmental factors that will disappear. Ultimately, the climate change is a serious threat to biodiversity

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The phenomena of global warming and climate change leads to Hazardous climate Threatened farming , Threatened clean water availability, 4. Threatened Human and ecosystem health 5. Threatens the very existence of small island nations Impact of Global Warming ?

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(A) MAKES THE SEA LEVEL RISE , AND WHEN THE SEA LEVEL RISES, THE WATER 1.COVERS MANY LOW LAND ISLANDS; 2.COVERS THE PLANTS & ANIMAL LIFE and causes some of them to die causing a break in the food chain. 3. IMBALANCE ON THE NATURAL ECOSYSTEM Affect on one cause the serious impact on other . 4. DESTROYING MANY HUGE FORESTS

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5. The pollution that causes global warming is linked to ACID RAIN that gradually destroys almost everything it touches. 6. LEADS TO LOW HARVEST . Seasons are becoming very irregular; drastic crop reductions. 7. ERRATIC RAINFALLS. Repeated flooding, monsoons and heavy rainfalls for long periods, drought, cyclone, and tornado increase the temperature and sea levels. 8 . STREAMS AND RIVERS DRYING UP. 9. FOREST FIRES that wipe out whole forests. In forests, some plants and trees leaves can be so dry that they catch on the fire.

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B- CHANGES IN THE TIMING OF BIOLOGICAL EVENTS (PHENOLOGY) CHANGES IN THE TIMING OF BIOLOGICAL EVENTS (PHENOLOGY): Changes in insect and bird migration with earlier arrival dates of spring migrants . Later autumn departure Changes in migratory patterns and Mismatch in the timing of breeding of bird species EARLIER FLOWERING AND LENGTHENING OF THE GROWING SEASON of some plants

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C.FLORA AND FAUNA AT RISK ON SHRINKING MEADOWS

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WHAT TO DO TO STOP GLOBAL WARMING??

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STOP TRASHING And burning Non biodegradable articles USE RECYCLER THINGS

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STOP WASTING ENERGY USE ECONOMIC LIGHTING

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USE GREEN ARCHITECTURE USE ORGANIC THINGS

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SAVE FOREST

SAVE THE WORLD:

SAVE THE WORLD

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AND YOU HAVE LOT TO DO FOR SAVING OUR PLANET SO PLEASE GIVE ATTENTION TO THOSE THINGS AND GIVE WHAT YOU GOT TO SAVE OUR WORLD BEFORE IT IS TOO LATE

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(c)Dr.Vinod Khanna, Principal, UCTBS, Dehra Dun Dr.Vinod Khanna