At our current rate of global emissions - around 10 billion tonnes per year, PWC's 2013 report estimated that we will exceed the "safe" limit of 2 degrees warming by 2034. Planting trees is great, but I can't help thinking we also need to stop chopping down forests in the first place. Global warming is caused by too many ‘greenhouse gases’ in our atmosphere – aka, gases that trap heat and warm our planet. A study released on Thursday, July 4, 2019 says that the most effective way to fight global warming is to plant lots of trees - a trillion of them, maybe more. Trees planted in tropical areas sequester an average of 22.6 Kg of carbon per annum. It is possible to sequester CO2 by planting trees on degraded land, changing farming practices, and using biochar on farms. So far, nearly 50 countries have signed on to the commitment. The #1 sector responsible for greenhouse gas emissions in the US is transportation , and cars account for 82% of this, according to the United States Environmental Protection Agency (EPA). The trillion trees initiative to reduce global warming is like someone trying to lose a lot of weight by taking daily walks without changing the daily diet. Back in 2011, Germany launched the Bonn Challenge, a global initiative aimed at restoring 350 million hectares of trees by 2030. (AP Photo/Luca Bruno) Even if global warming is limited to 1.5 degrees Celsius, the area available for forest restoration could be reduced by a fifth by 2050 because it would be too warm for some tropical forests. The Intergovernmental Panel on Climate Change (IPCC) said that if the world wanted to limit the rise to 1.5C by 2050, an extra 1bn hectares (2.4bn acres) of trees would be needed. But we do need to plant more trees, quickly. Here are some of the changes that will need to be made in order to stop the current pace of global warming: Reduce carbon emissions by 45% By 2030, global … When you chop down a tree, you … Other changes have to be made to reduce global CO 2 emissions and an effective response lies in the hands of world politicians. But approximately 10 percent of them don’t have enough available space to restore the intended amount of trees. Key questions scientists will need to address are how global reforestation might affect Earth’s surface albedo (reflectivity) and evapotranspiration. In the near term and locally, says Saatchi, forest restoration may actually have a warming effect. To help reach the UK government's 2050 target to become carbon net zero – that’s removing as much carbon as we’re producing – we need more trees. Quora User has an interesting answer, though it is half true. 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