1. understanding of global warming. Factors causing global warming
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PLAN: 1.UNDERSTANDING OF GLOBAL WARMING. 2.FACTORS CAUSING GLOBAL WARMING. 3.IMPACT OF CLIMATE CHANGE ON PEOPLE. CLIMATE CHANGE DESCRIBES GLOBAL WARMING—THE ONGOING INCREASE IN GLOBAL AVERAGE TEMPERATURE—AND ITS EFFECTS ON EARTH’S CLIMATE SYSTEM. CLIMATE CHANGE IN A BROADER SENSE ALSO INCLUDES PREVIOUS LONG-TERM CHANGES TO EARTH’S CLIMATE. THE CURRENT RISE IN GLOBAL AVERAGE TEMPERATURE IS MORE RAPID THAN PREVIOUS CHANGES, AND IS PRIMARILY CAUSED BY HUMANS BURNING FOSSIL FUELS AVERAGE SURFACE AIR TEMPERATURES FROM 2011 TO 2021 COMPARED TO THE 1956–1976 AVERAGE CHANGE IN AVERAGE SURFACE AIR TEMPERATURE SINCE THE INDUSTRIAL REVOLUTION, PLUS DRIVERS FOR THAT CHANGE. HUMAN ACTIVITY HAS CAUSED INCREASED TEMPERATURES, WITH NATURAL FORCES ADDING SOME VARIABILITY. DUE TO CLIMATE CHANGE, DESERTS ARE EXPANDING, WHILE HEAT WAVES AND WILDFIRES ARE BECOMING MORE COMMON. INCREASED WARMING IN THE ARCTIC HAS CONTRIBUTED TO MELTING PERMAFROST, GLACIAL RETREAT AND SEA ICE LOSS.HIGHER TEMPERATURES ARE ALSO CAUSING MORE INTENSE STORMS, DROUGHTS, AND OTHER WEATHER EXTREMES.RAPID ENVIRONMENTAL CHANGE IN MOUNTAINS, CORAL REEFS, AND THE ARCTIC IS FORCING MANY SPECIES TO RELOCATE OR BECOME EXTINCT.EVEN IF EFFORTS TO MINIMISE FUTURE WARMING ARE SUCCESSFUL, SOME EFFECTS WILL CONTINUE FOR CENTURIES. THESE INCLUDE OCEAN HEATING, OCEAN ACIDIFICATION AND SEA LEVEL RISE. CLIMATE CHANGE THREATENS PEOPLE WITH INCREASED FLOODING, EXTREME HEAT, INCREASED FOOD AND WATER SCARCITY, MORE DISEASE, AND ECONOMIC LOSS. HUMAN MIGRATION AND CONFLICT CAN ALSO BE A RESULT. THE WORLD HEALTH ORGANIZATION (WHO) CALLS CLIMATE CHANGE THE GREATEST THREAT TO GLOBAL HEALTH IN THE 21ST CENTURY.SOCIETIES AND ECOSYSTEMS WILL EXPERIENCE MORE SEVERE RISKS IN THE FUTURE WITHOUT ACTION TO LIMIT WARMING.ADAPTING TO CLIMATE CHANGE THROUGH EFFORTS LIKE FLOOD CONTROL MEASURES OR DROUGHT-RESISTANT CROPS PARTIALLY REDUCES CLIMATE CHANGE RISKS, ALTHOUGH SOME LIMITS TO ADAPTATION HAVE ALREADY BEEN REACHED.POORER COUNTRIES ARE RESPONSIBLE FOR A SMALL SHARE OF GLOBAL EMISSIONS, YET THEY HAVE THE LEAST ABILITY TO ADAPT AND ARE MOST VULNERABLE TO CLIMATE CHANGE. MANY CLIMATE CHANGE IMPACTS ARE ALREADY FELT AT THE CURRENT 1.2 °C (2.2 °F) LEVEL OF WARMING. ADDITIONAL WARMING WILL INCREASE THESE IMPACTS AND CAN TRIGGER TIPPING POINTS, SUCH AS THE MELTING OF THE GREENLAND ICE SHEET.UNDER THE 2015 PARIS AGREEMENT, NATIONS COLLECTIVELY AGREED TO KEEP WARMING “WELL UNDER 2 °C”. HOWEVER, WITH PLEDGES MADE UNDER THE AGREEMENT, GLOBAL WARMING WOULD STILL REACH ABOUT 2.7 °C (4.9 °F) BY THE END OF THE CENTURY.LIMITING WARMING TO 1.5 °C WILL REQUIRE HALVING EMISSIONS BY 2030 AND ACHIEVING NET-ZERO EMISSIONS BY 2050 SOME EFFECTS OF CLIMATE CHANGE, CLOCKWISE FROM TOP LEFT: WILDFIRE INTENSIFIED BY HEAT AND DROUGHT, WORSENING DROUGHTS COM PROMISING WATER SUPPLIES, AND BLEACHING OF CORAL CAUSED BY MARINE HEATWAVES. REDUCING EMISSIONS REQUIRES GENERATING ELECTRICITY FROM LOW-CARBON SOURCES RATHER THAN BURNING FOSSIL FUELS. THIS CHANGE INCLUDES PHASING OUT COAL AND NATURAL GAS FIRED POWER PLANTS, VASTLY INCREASING USE OF WIND, SOLAR, NUCLEAR AND OTHER TYPES OF RENEWABLE ENERGY, AND REDUCING ENERGY USE. ELECTRICITY GENERATED FROM NON-CARBON- EMITTING SOURCES WILL NEED TO REPLACE FOSSIL FUELS FOR POWERING TRANSPORTATION, HEATING BUILDINGS, AND OPERATING INDUSTRIAL FACILITIES. CARBON CAN ALSO BE REMOVED FROM THE ATMOSPHERE, FOR INSTANCE BY INCREASING FOREST COVER AND BY FARMING WITH METHODS THAT CAPTURE CARBON IN SOIL. ACTIVITY 1 CLIMATE CHANGE -IQLIM O’ZGARISHI INCLUDES-O’Z ICHIGA OLADI FOSSIL FUEL-QAZILMA YOQILG’I NOTABLE CARBON –MUHIM UGLEROD AMOUNTS-MIQDOR PLUS DRIVERS-ORTIQCHA HAYDOVCHILAR WILDFIRES-O’RMON YONILG’ILARI PERMAFROST-ABADIY MUZLIK GLACIAL RETREAT-MUZLIKLARNING CHEKINISHI SEA ICE LOSS-DENGIZ MUZLIKLARNING YO'QOLISHI STORMS –BO’RONLAR REEFS-MARJON RIFLARI SUCCESSFUL-OMADLI LEVEL RISE-DARAJANING KO’TARILISHI VASTLY INCREASING-KATTA O’SISH ACTIVITY 2 1. ........ DESCRIBES ...... —THE ONGOING INCREASE IN GLOBAL AVERAGE TEMPERATURE—AND ITS EFFECTS ON EARTH’S CLIMATE SYSTEM. 2.LARGER AMOUNTS OF THESE GASES ....... HEAT IN EARTH’S LOWER ATMOSPHERE, CAUSING GLOBAL WARMING. 3. ....... AND CONFLICT CAN ALSO BE A RESUL. 4.MANY CLIMATE CHANGE IMPACTS ARE ALREADY FELT AT THE CURRENT ...... LEVEL OF WARMING. 5.LIMITING WARMING TO 1.5 °C WILL REQUIRE HALVING EMISSIONS BY ...... AND ACHIEVING NET- ZERO EMISSIONS BY ..... ACTIVITY 3 1.WHAT IS CLIMATE CHANGE? 2.WHAT CAUSES GLOBAL WARMING? 3.WHAT DOES ARCTIC WARMING HELP? 4.WHAT IS THE THREAT OF CLIMATE CHANGE TO HUMANS? 5.HOW DO YOU REMOVE CARBON FROM THE ATMOSPHERE? ACTIVITY 4 THANK YOU FOR YOUR ATTENTION Yüklə 1,31 Mb. Dostları ilə paylaş:
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