What current solutions have world leaders suggested for slowing population growth?

Major programs and solution that have been proposed to address the issue of overpopulation are increased education about family planning and also increasing the availability of contraceptives. By seeking to educate families and individuals on the benefits of careful family planning and also broader issues such as overpopulation it is possible to address this issue. Also proper and effective contraception is an essential element to prevent unwanted pregnancies. 

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Although this may be the opposite of what you think i will say it anyway. you were brought into this world for a reason and you still have soo much ahead of you. not everybody has an opportunity of living a great life, but it doesn’t give you a reason to end everything. somebody in the world loves you, and imagine what you would do to them if you left forever.