Concrete blocks are placed along the shoreline to try and prevent further coastal erosion, on December 2019 in Mahibadhoo, Maldives.

The imprint of climate change is now apparent in global weather data at a daily level, according to a new paper in the peer-reviewed journal Nature Climate Change.

Why it matters: "If verified by subsequent work, the findings ... would upend the long-established narrative that daily weather is distinct from long-term climate change," the Washington Post reports.

What they found: "The fingerprint of climate change is detected from any single day in the observed global record since early 2012, and since 1999 on the basis of a year of data," the study states.

What they're saying: "The study’s results also imply that research aimed at assessing the human role in contributing to extreme weather events such as heat waves and floods may be underestimating the contribution," the WashPost's Andrew Freedman reports.

Go deeper:

Go deeper

Updated 39 mins ago - Politics & Policy

Tim Scott says Trump "misspoke" when he told Proud Boys to "stand by"

Photo: Bonnie Cash/Pool/AFP via Getty Images

Sen. Tim Scott (R-S.C.) told reporters on Wednesday that he believes President Trump "misspoke" when he told the far-right "Proud Boys" group to "stand back and stand by" in response to a question about condemning white supremacy at the first presidential debate.

Catch up quick: Moderator Chris Wallace asked Trump on Tuesday, "Are you willing, tonight, to condemn white supremacists and militia groups and to say that they need to stand down?" Trump asked who specifically he should condemn, and then responded, "Proud Boys, stand back and stand by. But I'll tell you what, somebody's got to do something about antifa and the left."

Updated 47 mins ago - Politics & Policy

Commission on Presidential Debates wants changes

Photos: Jim Watson and Saul Loeb/AFP via Getty Images

The Commission on Presidential Debates announced Wednesday that it plans to implement changes to rules for the remaining debates, after Tuesday night's head-to-head between Joe Biden and Donald Trump was practically incoherent for most of the night.

What they are saying: "Last night's debate made clear that additional structure should be added to the format of the remaining debates to ensure a more orderly discussion of the issues," the CPD said in a statement.

Trump says he doesn't know who Proud Boys are after telling them to "stand by"

President Trump told reporters on Wednesday that he doesn't know who the Proud Boys are, after saying at the presidential debate last night that the far-right group should "stand back and stand by" in response to a question asking him to condemn white supremacists.

Why it matters: The comments set off outrage and calls for clarification from a number of Republican senators. After being asked several times on Wednesday whether he will condemn white supremacy, Trump responded, "I have always denounced any form — any form of any of that, you have to denounce. But I also — Joe Biden has to say something about antifa."