1. Global warmingBy- Supriya NegiClass- IX-CRoll No.- 29

2. What is global warming?OGlobal warming is the observed century-scale rise inthe average temperature of Earth's climate system. Itis also defined as increases in average temperature ofthe air and sea at Earth's surface. Each of the lastthree decades has been successively warmer at theEarth's surface than any preceding decade since 1850.OScientific understanding of the cause of globalwarming has been increasing. Most of globalwarming is being caused by increasing concentrationsof greenhouse gases produced by human activities. 3. causesOBurning of fossil fuelsODeforestationOFluorocarbonsOUse of fertilizersORelease of Methane gas from Arctic TundraOMiningOPopulation increase 4. solutionsOBoosting energy efficiency:OGreening transportation:OReviving up renewables:OPhasing out fossil fuel electricity:OManaging forests and agriculture:.ODeveloping and deploying new low-carbon and zero-carbontechnologies:OEnsuring sustainable development:OAdapting to changes already underway: 5. Help our planet!If we dont not care , who will care?