The Washington Post – Top science groups tell climate change doubters in Congress to knock it off
More than half of the Republicans in Congress question the science of human-caused climate change, according to the Center for American Progress. The presumptive Republican nominee for president, Donald Trump, has also said he is not “a great believer in man-made climate change.” In a letter dated Tuesday, 31 leading U.S. scientific organizations sent members of Congress a no-nonsense message that human-caused climate change is real, poses risks to society and is backed by overwhelming evidence.

CNN – Lawmakers urge FDA to lift blood ban for gay men
Two Democratic lawmakers joined the Progressive Change Campaign Committee and others Tuesday in urging the Food and Drug Administration to change its blood donation policy. The FDA restricts gay men who have had sexual contact with another man in the past 12 months from giving blood. One of the lawmakers to speak Tuesday, Colorado Rep. Jared Polis, who is openly gay, has been fighting to overturn this policy.

NPR – States Offer Privacy Protection For Young Adults On Parents’ Health Plan
The Affordable Care Act opened the door for millions of young adults to stay on their parents’ health insurance until they turn 26. But there’s a downside to remaining on the family plan. Chances are that Mom or Dad, as policyholder, will get a notice from the insurer every time the grown-up kid gets medical care, a breach of privacy that many young people may find unwelcome. With this in mind, in recent years a handful of states have adopted laws or regulations that make it easier for dependents to keep medical communications confidential.

NBC News – Water Systems Violate Lead Rules Nationwide, Advocacy Group Finds
More than 5,000 water systems across the country are violating rules meant to keep lead out of drinking water, advocates said Tuesday. While the case in Flint, Michigan has dominated headlines, cities and towns across the U.S. are in similar danger, the Natural Resources Defense Council found in a report. “We have got millions of Americans drinking water that poses health risks to them and their families,” the NRDC’s Erik Olson told reporters on a conference call.

HealthDay – Giving OD Antidote to Those Using Powerful Painkillers Might Save Lives
In the wake of the musician Prince’s death from a painkiller overdose, a new study suggests some opioid-related deaths could be prevented by routinely prescribing an antidote for certain patients who take the medications. Researchers found that those who received prescriptions for the antidote naloxone (Evzio) were less likely to return for emergency care related to their painkiller use.