US scientists concerned about budget cuts

There is growing concern about funding cuts in research projects and President Donald Trump's doubts about global warming. A billion people in 192 countries are observing Earth Day on Saturday.

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    There is growing concern about funding cuts in research projects and President Donald Trump's doubts about global warming.

    A billion people in 192 countries are observing Earth Day on Saturday. In the United States people will march to celebrate the use of science to tackle climate change and call on politicians to be scientific in decision making.

    Al Jazeera’s John Hendren reports from Chicago.


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