Washington (CNN)Global warming and other environmental issues have been a topic in this year's presidential election. Hillary Clinton has made various mentions of how she'd handle the environment. CNN's Reality Check Team put her statements and assertions to the test.
Hillary Clinton on the environment: CNN's Reality Check vets the claims
The team of reporters, researchers and editors across CNN listened throughout the speech and selected key statements, rating them true; mostly true; true, but misleading; false; or it's complicated.
Reality Check: Clinton on Trump's climate change views
June 22, 2016
By Laura Koran, CNN
In her speech Tuesday, Clinton took on her Republican opponent, saying Trump "has no clean energy plan."
"He just says that climate change is a hoax invented by the Chinese," Clinton said. "Well, I'll give him this -- it's a lot easier to say a problem doesn't exist than it is to actually try to solve it."
Not only has Trump suggested climate change is a Chinese hoax, he's repeated the claim many times over the course of at least four years.
On November 6, 2012, Trump tweeted, "The concept of global warming was created by and for the Chinese in order to make U.S. manufacturing non-competitive."
Over a year later, Trump tweeted in response to weather reports, "Snowing in Texas and Louisiana, record setting freezing temperatures throughout the country and beyond. Global warming is an expensive hoax!"
And Trump's doubts have continued into the campaign season.
Last September, when he was seeking the Republican nomination, Trump told CNN that while he supports clean air and water, "I am not a believer in climate change."
Trump went on to refute the connection between climate change and a rise in extreme weather phenomenon.
"Weather changes," said Trump. "And you have storms, and you have rain, and you have beautiful days, but I do not believe that we should imperil the companies within our country. And by the way, China is doing nothing."
In March, Trump took a more nuanced approach, telling a Washington Post editorial board that he doesn't believe climate change is the result of man-made causes.
"I think there's a change in weather," he said. "I am not a great believer in man-made climate change. I'm not a great believer."
And while Trump has repeated the hoax line on multiple occasions, he's walked back the assertion that it was created by the Chinese, saying he meant that as a joke ... sort of.
"I often joke that this is done for the benefit of China," Trump said on Fox News' "Fox & Friends." "Obviously, I joke, but this is done for the benefit of China, because China does not do anything to help climate change."
While Trump doubts the validity of climate change, his company has prepared for it. According to a Politico report, Trump International Golf Links applied for a permit to build a sea wall at his golf course in Ireland to protect it from "global warming and its effects."
Verdict: TRUE. While Trump has wavered on the cause of climate change, he has repeatedly denied its existence and called it a hoax.
Reality Check: Clinton on working with Obama to reduce lead
March 6, 2016
By Lisa Rose, CNN
Clinton said that lead poisoning and safe drinking water were issues that she sought to spotlight when she was in the Senate. "I worked with then-Senator Obama to get more money, more support to do more to remove lead," Clinton said.
Before they ran against each other in the 2008 presidential campaign, Clinton and Obama did work as a team to address the hazards of lead contamination.
In 2005, Clinton and Obama introduced the Home Lead Safety Tax Credit Act, which offered a credit of up to $3,000 to help low income families cover the cost of renovations in aging homes with lead-based paint. The measure was read twice and sent to the Senate Finance Committee.
A year later, they co-sponsored the Lead Poisoning Reduction Act of 2006, which called for $42.6 million in grants to reduce lead hazards in child care centers, Head Start facilities and kindergarten classrooms. The bill went to the Committee on Environmental and Public Works.
That same year, Clinton and Obama called on the Environmental Protection Agency to step up its efforts to enforce the Safe Drinking Water Act nationwide after the Government Accountability Office issued a report warning that federal regulators were not being provided with sufficient data about community water systems.
Finally, in 2008, Obama and Clinton co-sponsored a bill to create stricter EPA standards for repair work on buildings with lead contamination. The measure, which was referred to the Committee on Environmental and Public Works, would have provided grants to fund training for contractors working on buildings with lead-based paint.
Although the bills introduced by Clinton and Obama didn't get very far in Congress, she did work with him to draw attention to the issue.