The figure illustrates the net emission reduction achieved in the period 1995-2008 (in the first column) and the net GHG emission reductions in 2020 compared to 1995 for all three scenarios (in columns two, three and four). The net emission reduction is calculated as the difference between net emissions in 1995 and net emissions in 2008 or 2020, as appropriate.
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Around 10 million pairs of usable spectacles are discarded each year in Europe and North America. These can be used to help people in the developing world to afford glasses. Most opticians now act as collection points for old glasses, so drop yours off and give them a new lease on life.
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