Arthur Brouhard Robinson (born March 24, 1942[1]) is an American biochemist, conservative activist, prominent climate change denier, and politician who served as the Oregon State Senator from the 2nd District from 2021 to 2025.

A former faculty member of the University of California, San Diego, Robinson now runs a privately funded laboratory known as the Oregon Institute of Science and Medicine in Cave Junction, Oregon,[2] a newsletter called Access to Energy,[2] and publishes the Robinson Self-Teaching Home School Curriculum.

[2][3][4][5] As the Republican nominee for the Fourth District in Oregon, Robinson ran and lost to Democratic incumbent Peter DeFazio in five consecutive elections: 2010, 2012, 2014, 2016, and 2018.

The board granted Robinson a leave of absence, and passed all executive authority to Pauling, later electing him president and director of the institute.

Although Robinson earned a Ph.D. from the University of California, San Diego in the 1960s, "he hasn't published peer-reviewed research on diagnostic medicine in decades."

"[2] In his monthly newsletter "Access to Energy", Robinson has reported on experiments showing that ionizing radiation can be good for you, advocates for a revival of cheap nuclear power, attacks climate science as a "false religion" that will enslave mankind, and condemns public education, instead favoring home schooling.

[22][28] In May 2010, Robinson won the Republican primary for Oregon's 4th congressional district, taking 79% of the vote to businesswoman Jaynee Germond's 20%.

[6] Six weeks before the election, $600,000 worth of TV advertisements started to appear in the district, portraying his opponent as "a puppet of the Democratic leadership".

It was later revealed that the advertisements, reportedly a surprise to Robinson, were paid for by conservative billionaire hedge fund manager Robert Mercer.

He ran against Jo Rae Perkins, a former Linn County Republican party chairwoman, in the primary election and won with 67 percent of the vote.

He faced four primary challengers this time, Perkins, again, plus former Eugene mayoral candidate Stefan Strek, Curry county commissioner Court Boice, and Michael Polen.

In addition to asserting that global warming is a hoax, Robinson opposes abortion and supports gun rights,[1] cutting taxes, increasing border security and building new power plants.

[33] Robinson is a signatory to A Scientific Dissent from Darwinism, a petition circulated by the Discovery Institute to promote the pseudoscientific intelligent design theory.

[34] In 2011, Robinson alleged that Oregon State University (OSU) was part of a conspiracy to retaliate against him for his political activism by expelling his three children, all of whom were graduate students there.

[35][37] While participating in a Republican-led walkout in May 2023 Robinson reached the 10 unexcused absence threshold set by measure 113, disqualifying him from running for reelection after his current term ends.

[39] On February 1, 2024, the Court unanimously ruled against the Republican Senators, confirming Robinson's disqualification after the end of his term in January 2025.