"It might not be the largest crowd ever assembled on the National Mall, or the hottest spring day ever recorded in the nation's capital, but the heat was oppressive enough, and the People's Climate March impressive enough in scale to send a message."

"When demonstrators flock to Washington on Saturday for the next iteration of the People’s Climate March — a date that coincides with the 100th day of the Trump administration, which during its short tenure has begun to roll back Obama-era environmental protections, ease regulations on the fossil fuel industry and ponder pulling out of the Paris climate agreement — the tone is likely to be more confrontational."

"Thousands of people gathered in the rain Saturday on the soggy grounds of the Washington Monument to turn Earth Day into an homage to science."

"Wildlife conservation groups sued the U.S. government on Wednesday seeking to halt a plan to trap and kill as many as 120 mountain lions and black bears in Colorado in a bid to stem declines in populations of mule deer favored by hunters."

"Environmental groups that vowed to fight President Donald Trump’s efforts to roll back his predecessor’s plans to curb global warming made good on their promise Wednesday, teaming up with an American Indian tribe to ask a federal court to block an order that lifts restrictions on coal sales from federal lands."

"Environmentalists and their allies are pledging to go to war against President Trump’s efforts to roll back his predecessor’s climate change agenda."

"The initiative involves 7,000 cities across 172 countries."

"A environmental group has launched a six-figure ad campaign against proposed budget cuts to the Environmental Protection Agency (EPA)."

"A prominent land rights activist has been shot dead by five gunmen at a hospital in Brazil where he was recovering from a previous assassination attempt."