In celebration of Earth Day this Saturday, let’s review how the Sierra Club sold its soul and screwed the Earth for a $100 million donation. They must hate themselves for it, so why shouldn’t we hate them, too?

After Teddy Kennedy’s 1965 immigration act began dumping millions of Third-Worlders on the country, the Sierra Club talked of little else besides reducing immigration.

In 1970, the club adopted a resolution complaining that the country’s growing population was polluting the “air, water and land” — to the point that “our very survival (is) threatened.”

In 1978, the Sierra Club adopted a resolution urging Congress to “conduct a thorough examination of U.S. immigration laws,” noting that the United States, Canada and Australia were the only countries admitting “more than a handful of permanent immigrants.”

In 1980, the club dropped its promotion of birth control, in order to focus on immigration. “It is obvious,” the club said, “that the numbers of immigrants the United States accepts affects our population size and growth rate,” even more than “the number of children per family.”

In 1989, the club’s Population Report expressly called for reducing the number of immigrants.

In 1990, the club’s grassroots leaders voted overwhelmingly to launch a major national campaign on the immigration problem.

Even people who don’t live in yurts can’t help but notice the environmental damage being done by hundreds of thousands of Latin Americans clamoring across the border every year, setting fires, dumping litter, spray-painting gang signs in our parks and defacing ancient Indian petroglyphs.

The problem isn’t just the number of people traipsing through our wilderness areas; it’s that primitive societies have no concept of “litter.” That’s a quirk of prosperous societies. The damage to our parks shows these cultural differences.

Writing in an environmental journal at New York University, Rosa P. Oakes described the “reprehensible” damage being done to “towering cactus, Joshua trees, flowering cactus varieties, colorful wildflowers and rock formations” by illegals. With accompanying photos, she noted that the immigrants’ litter included “abandoned vehicles … used needles, drug paraphernalia, plastic grocery bags, paper products, empty water containers, blankets, clothing, used disposable diapers, among other things.”

The Mexican cultural trait of littering is apparently well known to everyone — except American journalists.

As usual, when it comes to anything that reflects negatively on Third World immigrants, you have to be Agatha Christie to get at the truth. If the media can hide Hispanic child rape, it’s child’s play for them to ignore the Hispanic littering problem.

The best way to find out about garbage being dumped all over by our vibrant recent immigrants is to look at local news stories from any town that contains a Hispanic Chamber of Commerce.

Here are three from last year:

Local politicians in heavily Hispanic Allentown, Pennsylvania, wanted to suck up to their constituents by renaming Seventh Street “Calle Siete.” Then it turned out that the Hispanic merchants on “Calle Siete” had no interest in this idea. Their No. 1 issue? Litter.

Dorcas Derivera, an immigrant from Guatemala, said in perfect English that if politicians wanted to do something useful, they would deal with the litter problem on Seventh Street, which she said she must pick up from the sidewalk before clients arrive.

“It’s embarrassing,” she told a local newspaper. “How am I going to do business?”

Also last year, in a classic MSM Hide-the-Mexican story, there were media reports of “racist” graffiti targeting “Hispanics and African-Americans” in San Leandro, California’s Marina Park. Obviously, graffiti directed at “Hispanics and African-Americans” could only have been left by one of those white supremacist gangs so prevalent on “Law and Order”!

Nope. It was Mexicans, again: The Nortenos, a Mexican gang. By “Hispanics,” the media meant “Hispanics other than the ones doing the graffiti.”

Then last October, the parks and recreation department in Decatur, Alabama, was again forced to remove goals from the soccer field because of the mountains of garbage routinely left behind. In the past decade, the soccer games had become “an increasingly popular social event among the Hispanic community.”

Would any of this be of interest to an alleged environmental group? It used to be — until the early 2000s.

That was when the Sierra Club was given $100 million by hedge fund billionaire David Gelbaum in exchange for never opposing immigration again. The club said, How dare you ask us to abandon our principles for filthy lucre!

Just kidding! It said, SURE! Did you bring the check?

Mass Third World immigration is a triple whammy for the environment because:

1) Millions more people are tromping through our country;

2) The new people do not share Americans’ love of nature and cleanliness; and

3) We’re not allowed to criticize them.

One big advantage of taking white Western European immigrants is that we’re permitted to complain about their grating cultural habits without being accused of “racism.” (Also, there aren’t that many of them.)

The Sierra Club didn’t anticipate the PC reasons for preferring non-Third World immigrants, but simply wanted to stop so many people pouring into our country and stepping on the flowers. Which is why the club used to be nearly monomaniacally focused on reducing immigration.

By now, it’s been a quarter-century since the Sierra Club cared about the environment. As is the fate of most groups that stick around long enough, today it’s just another left-wing, hate-America interest group. Unfortunately, among the things the Sierra Club hates about America are its rivers, mountains, hiking trails, parks and wildlife.

Give me your tired, your poor, your empties and pizza boxes, your Cheetos bags, your soiled diapers and abandoned couches …