Nor can we expect trees to grow on landscapes that aren't ecologically suitable - think deserts or the Great Plains - without vast influxes of water and fertilizer, which would carry their own environmental consequences. But how and where can the United States plant billions of new trees? The country can't realistically return productive agricultural lands to forest, not when we need to feed a global population expected to reach 10 billion by 2050. If done well, planting trees can help address the climate crisis by removing carbon from the atmosphere (though it's no substitute for reducing greenhouse gas emissions) while providing benefits for communities and the environment. Bruce Westerman of Arkansas (which envisions increasing planting in the United States by 24 billion trees over 30 years). Lawmakers from both parties have also proposed legislation to accelerate tree planting campaigns, including the " Trillion Trees Act" recently introduced by Rep. President Trump highlighted the initiative as the cornerstone of his plan to protect the environment, a rare shift for an administration that has moved to withdraw from the Paris Agreement on climate change and dismantle domestic environmental regulations. The Trillion Trees Initiative has garnered support from business and political leaders around the world.
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