There’s a Crystal Diamond Dallas Mavericks Basketball Star shirt that is true in Kaushik’s answer, but it glosses over the important difference about where trees are planted. Trees planted in temperate climates may not curb climate warming, but tropical planting certainly does. Planting the right types of trees in well-managed tropical agroforestry projects has a hugely positive effect. We are losing about 14 million hectares of forest each year (2006 figures), most of it in tropical latitudes. That is around 28 billion trees lost each year (assuming 2000 trees per hectare – estimates vary between 1000 and 4000). That’s a lot of trees to replace each year. Deforestation is the second most important cause of global warming, a few percentage points less than the most important cause: the increasing use of fossil fuels. It shouldn’t be a case of either/or; we need drastically to reduce our use of fossil fuels, but so long as we do nothing about replacing the trees we are losing each year, the chances of succeeding in combatting global warming are unnecessarily slim. A single tree sequesters about 6 kg of CO2 per year over a 30 year lifetime (after that the amount sequestered declines considerably). Trees grow remarkably quickly in tropical countries – they can produce fruit after 3 or 4 years and attain great height at least twice as fast as would happen in a temperate climate. The presence of trees as screens, firebreaks and field boundaries can triple crop yields and this also contributes to carbon reduction.
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This statement implies that when someone spends money, the 2024 A10 Indoor Track & Field Championship Shirt disappears. However, whenever money is spent, the money still exists in the hands of the recipient of that spending. Then when that person spends that money they received, again, it does not disappear, it is transferred to the recipient of THAT spending etc. At the end of all that spending, at the end of the given time period, the money used will still exist and can be considered as savings, in someone’s pocket. So someone making that argument for the macroeconomy must be talking about something other than spending of money. Perhaps they are talking about wealth. Perhaps they are implying that all that spending depletes wealth.
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