Study touts planting 1 trillion trees as most effective climate change solution

The cheapest way to halt the effects of climate change could be planting 1 trillion trees, according to a new study.

The study in the journal Science, first reported by The Associated Press, found that planting trees could be the most effective way to remove carbon from the atmosphere, but cautioned that it would have little effect without a reduction of emissions around the globe.

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“This is by far — by thousands of times — the cheapest climate change solution” study co-author Thomas Crowther, an ecologist at the Swiss Federal Institute of Technology, said.

“It’s certainly a monumental challenge, which is exactly the scale of the problem of climate change,” he added.

Though, Crowther cautioned, “None of this works without emissions cuts."

Scientists with the United Nations have called for a major reduction in carbon emissions over the next decade to stave off the worst effects of climate change, including rising sea levels and dangerous weather phenomena.

Lawmakers around the world have debated on how to address the issue, and in 2017 the U.S. withdrew from a major accord meant to battle climate change due to President TrumpDonald John TrumpWHCA calls on Trump to denounce video depicting him shooting media outlets Video of fake Trump shooting members of media shown at his Miami resort: report Trump hits Fox News's Chris Wallace over Ukraine coverage MORE's opposition to the pact.

Democratic candidates for president, including former Vice President Joe BidenJoe BidenTrump hits Fox News's Chris Wallace over Ukraine coverage Schiff: Whistleblower testimony might not be necessary Trump warns Democrats will lose House seats over impeachment MORE, have called for the U.S. to rejoin the agreement. Progressives are pushing an ambitious plan to cut U.S. carbon emissions, the Green New Deal, introduced earlier this year by Sen. Ed MarkeyEdward (Ed) John MarkeyDemocrats urge Rick Perry not to roll back lightbulb efficiency rules Ocasio-Cortez taps supporters for donations as former primary opponent pitches for Kennedy Rep. Joe Kennedy has history on his side in Senate bid MORE (D-Mass.) and Rep. Alexandria Ocasio-CortezAlexandria Ocasio-CortezSanders wishes Ocasio-Cortez happy birthday Democrat launches primary challenge to Ocasio-Cortez Ocasio-Cortez fires back at Washington Times after story on her 'high-dollar hairdo' MORE (D-N.Y.).

If enacted, the Green New Deal calls for the transition of America's energy grid away from fossil fuels to renewable energy.