AP Photos: Youths worldwide call for action on climate

A father with his son attend a global protest on climate change in Rio de Janeiro, Brazil, Friday, Sept. 20, 2019. Across the globe, hundreds of thousands of people took to the streets Friday to demand that leaders tackle climate change in the run-up to a U.N. summit. (AP Photo/Silvia Izquierdo)
Protesters with placards participate in the Global Strike 4 Climate rally in Sydney, Friday, Sept. 20, 2019. Thousands of protesters are gathering at rallies around Australia as a day of worldwide demonstrations begins ahead of a U.N. climate summit in New York. (Steven Saphore/AAP Images via AP)
A woman holds a poster reading 'I am climate" during a climate demonstration Friday, Sept. 20, 2019 in Paris. In Canberra and Kabul, Cape Town and Berlin, and across the globe, hundreds of thousands of people took the streets Friday to demand that leaders tackle climate change in the run-up to a U.N. summit. (AP Photo/Francois Mori)
Youths gather at Nation square at the start of a climate demonstration Friday, Sept. 20, 2019 in Paris. In Canberra and Kabul, Cape Town and Berlin, and across the globe, hundreds of thousands of people took the streets Friday to demand that leaders tackle climate change in the run-up to a U.N. summit. (AP Photo/Francois Mori)
A women has painted her head like a globe as she attend a 'Fridays For Future' rally in Stuttgart, Germany, Friday, Sept. 20, 2019. Protests of the 'Fridays For Futurte' movement against the increase of carbon dioxide emissions are planned Friday in cities around the globe. In the United States more than 800 events are planned Friday, while in Germany more than 400 rallies are expected. (Sebastian Gollnow/dpa via AP)
A young boy sits in a tree to get a view joins around a thousand other protesters to demand action on climate change, in a park in downtown Nairobi, Kenya Friday, Sept. 20, 2019. Protesters around the world joined rallies on Friday as a day of worldwide demonstrations calling for action against climate change began ahead of a U.N. summit in New York. (AP Photo/Ben Curtis)
A student holds a sign while participating in a "Global Climate Strike" at the Experiential School of Greensboro in Greensboro, N.C., on Friday, Sept. 20, 2019. Across the globe hundreds of thousands of young people took the streets Friday to demand that leaders tackle climate change in the run-up to a U.N. summit. (Khadejeh Nikouyeh/News & Record via AP)
Climate protesters demonstrate in Budapest, Friday, Sept. 20, 2019. In Canberra and Kabul, Cape Town and Berlin, and across the globe, hundreds of thousands of people took the streets Friday to demand that leaders tackle climate change in the run-up to a U.N. summit. (Zoltan Balogh/MTI via AP)
Swedish environmental activist Greta Thunberg, center, takes part in a rally calling for action on climate change, Friday, Sept. 20, 2019 in New York. (AP Photo/Eduardo Munoz Alvarez)
Pakistani students take part in the Climate March in Lahore, Pakistan, Friday, Sept. 20, 2019. A wave of climate change protests swept across the globe Friday, with hundreds of thousands of young people sending a message to leaders headed for a U.N. summit: The warming world can't wait for action. (AP Photo/K.M. Chaudary)
Thousands crowd main De la Loi street as they march during a climate protest in Brussels, Friday, Sept. 20, 2019. In Canberra and Kabul, Cape Town and Berlin, and across the globe, hundreds of thousands of people took the streets Friday to demand that leaders tackle climate change in the run-up to a U.N. summit. (AP Photo/Francisco Seco)
A protester holds a sign depicting a crying earth during a climate strike rally outside City Hall in Portland, Maine, Friday, Sept. 20, 2019. (AP Photo/Robert F. Bukaty)

Throughout the world Friday, young people banded together to demand that world leaders headed to a United Nations summit in New York step up their efforts to combat climate change.

The demonstrations , held from Canberra to Kabul to Paris to New York, were inspired in part by the activism of Swedish teenager Greta Thunberg , who over the past year has staged weekly demonstrations urging governments to take action to save the environment.

The world has warmed about 1 degree Celsius (1.8 Fahrenheit) since before the Industrial Revolution, and scientists have attributed more than 90 percent of the increase to emissions of heat-trapping gases from fuel-burning and other human activity.

Scientists have warned that global warming will subject Earth to rising seas and more heat waves, droughts, powerful storms, flooding and other problems, and that some have already started manifesting themselves.

"Basically our earth is dying and if we don't do something about it, we die," said A.J. Conermann, a 15-year old sophomore who attended a protest in Washington, D.C. "I want to grow up. I want to have a future."

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