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WRAPUP 8-Inspired by Swedish teen, worldwide protest demands climate action

* Adds details of U.S. protests

By Gabriella Borter, Fabrizio Bensch and Patpicha Tanakasempipat

Sept 20 (Reuters) - Millions of young people flooded the streets of cities around the world on Friday to demand political leaders take urgent steps to stop climate change, uniting in a worldwide protest inspired by 16-year-old Swedish activist Greta Thunberg.

Alarmed by images of the Greenland ice sheets melting and the Amazon rain forests burning, students and workers abandoned schools, shops and offices in nearly every corner of the globe, aiming to stop what they see as a looming environmental catastrophe.

The protests started in the Pacific islands, where rising sea levels threaten a way of life, and followed the rising sun across Australia, Japan, Southeast Asia and on to Europe, Africa, the Middle East and the Americas. The coordinated student "strike" culminated in New York's Wall Street, where some investors have embraced the fossil fuel industry.

Massive crowds overwhelmed the streets of lower Manhattan, letting out roars of "Save our planet!" while anticipating an address by Thunberg, who soared to prominence after sailing across the Atlantic in an emissions-free yacht ahead of next week's climate summit at the United Nations.

"Right now we are the ones who are making a difference. If no one else will take action, then we will," Thunberg told demonstrators in New York.

"We demand a safe future. Is that really too much to ask?" she said.

Demonstrators in Paris raised a painting of Thunberg as the Virgin Mary, a halo around her head reading, "Our house is on fire.

"She's like the icon of our generation," New York protester Fiamma Cochrane, 17, said of Thunberg, highlighting the leadership role of young people in the international cry to reduce consumption of fossil fuels.

For Jane Willis, a 62-year-old high school English teacher and playwright, the students offered a ray of hope even as the recreational area of her own youth, Lake Hopatcong, New Jersey, was polluted by pesticides.

"My heart feels two ways," Willis said, surveying the crowd. "Half of it is breaking, and half of it just feels really buoyed up, I feel hopeful."

Worldwide concern has escalated since U.S. President Donald Trump abandoned the international Paris Accord on climate change and took a series of steps to dismantle environmental protections, including moving on Thursday to block stricter vehicle emissions standards in California.

Demonstrators in Thailand stormed into the environment ministry and feigned death, while activists in Berlin and Munich re-enacted gallows, standing on melting blocks of ice with nooses around their necks to symbolize the death that awaits them when the polar ice caps melt.