The phrase "a serious environmental problem" is correct and usable in written English.
You can use it when discussing issues related to the environment that have significant negative impacts or consequences.
Example: "Climate change is increasingly recognized as a serious environmental problem that affects ecosystems and human societies worldwide."
Alternatives: "a significant environmental issue" or "a critical environmental concern".
"This is a serious environmental problem," said Joe Hennon, a spokesman for the EU.
George W. Bush was a man with a serious environmental problem throughout his campaign for the presidency.
Gov. Arnold Schwarzenegger said the new rules would help California address a serious environmental problem, while giving companies flexibility in meeting clean-air goals.
It could also have informed its legal services department and contacted car manufacturers to ask whether their cars were causing a serious environmental problem that necessitated their recall.
Many scientists and environment experts said the Stanford project was likely to be a valuable new assault on a serious environmental problem.
Some caves have been described in Congo (Kinshasa), and caves are known in South Africa where sinkhole collapse in the Transvaal Dolomite owing to dewatering by gold mining has been a serious environmental problem.
Sir James Dyson, the billionaire founder of the bagless vacuum cleaner and founder of the awards – run by the James Dyson Foundation – said: "This tangible technology approaches a serious environmental problem and we should celebrate it.
Heavy metal pollution has become a more serious environmental problem in the last several decades as a result of its toxicity and insusceptibility to the environment.
Sulfur oxides (SO x ) resulting from the combustion of sulfur compounds in fuels have become an increasingly serious environmental problem worldwide as they are a major cause of acid rain and atmospheric pollution.
The failed brake pads have been recognized as a kind of solid waste, which result in serious environmental problem.
The harsh truth, says Mr Barrett, "is that ozone depletion may be the more serious environmental problem...Ozone depletion kills people.
