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Illustrations: Lazaro Gamio/Axios

Capturing carbon dioxide emissions is probably unavoidable to address climate change, but the technology to do it is still in its infancy, expensive and not broadly understood.

The intrigue: We're here to show you something none of us can really see — CO2 emissions are invisible to the naked eye — and the technology that's just getting off the ground. Keep reading to see an illustrated description of the main ways CO2 can be captured.

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Ben Sasse emerges as GOP Trump critic ahead of November

Sen. Ben Sasse walks to the Senate from the subway to vote in June. Photo: Bill Clark/CQ-Roll Call via Getty Images

Sen. Ben Sasse (R-Neb.) has dialed up his spicy slams of President Trump, including this swipe at yesterday's signing ceremony: "The pen-and-phone theory of executive lawmaking is unconstitutional slop."

Why it matters: Trump increasingly looks — to business and to fellow Republicans — like a loser in November. So they're more likely to create distance to save their own skins. Sasse also won his May primary, further freeing him.

Pelosi: "States don't have the money" for Trump's unemployment order

House Speaker Nancy Pelosi claimed on "Fox News Sunday" that states don't have the funds to comply with the executive order President Trump signed on Saturday, which requires them to cover 25% of an additional $400 in weekly unemployment benefits.

Why it matters: Many state and local governments have had their budgets devastated by the economic impacts of the coronavirus, which have caused expenses to soar and revenues to plunge.

Kudlow says he regrets claiming Trump couldn't use executive order for unemployment

White House economic adviser Larry Kudlow said on CNN's "State of the Union" Sunday that he regrets suggesting this week that unemployment benefits can only be extended by Congress.

Why it matters: President Trump's decision to bypass Congress to sign four executive actions, including one that provides $400 per week in extra unemployment benefits, has prompted outcry from Democrats and even some Republicans who believe he is overstepping his constitutional authority.