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A Sumatran tiger cub, giant panda and a ‘faceless’ deep-sea fish are among this week’s pick of images from the natural world

Labour leader says PM should have condemned decision to pull US out of climate agreement in stronger terms

Jeremy Corbyn has accused Theresa May of a “dereliction of duty to our country and our planet” for failing to give a stronger condemnation of Donald Trump’s decision to pull the US out of the Paris climate change agreement.

The Labour leader said the prime minister was showing herself to be subservient to the US president and claimed he would take a very different approach to relations with Washington.

Politicians, governments and newspapers across the world react with dismay and frustration over US president’s decision to pull the world’s second biggest emitter of greenhouse gases out of the agreement

Beijing and Brussels join leaders around world in show of solidarity after Trump’s announces US pullout from climate accord

European and Chinese leaders have pledged to continue in combatting global warming as widespread condemnation met Donald Trump’s announcement he was pulling the US out of the Paris climate accord.

The US president “can’t and won’t stop all those of us who feel obliged to protect the planet.” She said the move was “extremely regrettable and that’s putting it very mildly”, said Angela Merkel, the German chancellor

Ideology and tribalism blind many people to the consequences of their climate denial and obstructionism

The science of climate change is clear. Scientists know that the Earth is warming and that humans are the reason. We also know that the Earth will continue to warm in the future; however, we can do something about it. We can dramatically change the trajectory.

If the science is so clear, why are there still so many people that don’t accept it? Why are there so many people who try to deny the evidence? Well, the why is something I will try handling in my next post. Here, I want to describe where things are, as I see them. Mind you, this is only my perspective, living in the USA, working on climate science and climate communication on a daily basis.

In Trump’s darkest speech since the ‘American carnage’ inaugural address, the world was presented as something to fear rather than aspire to lead

Donald Trump’s rejection of the Paris climate change treaty is the most emphatic answer to date the question the rest of the world has been asking since January: What does “America First” mean?

“I am elected to represent the citizens of Pittsburgh, not Paris,” the president declared in the Rose Garden, after a jazz group had entertained the invited audience.

Local government buildings in New York, Boston, Washington DC, Montreal and Paris lit up after US withdrawal from accord

Landmarks in cities across the world have been lit up green in support of the Paris climate accord after Donald Trump’s announcement on Thursday that the US would withdraw from the agreement.

In New York, the spire of the One World Trade Centre was illuminated. The New York state governor, Andrew Cuomo, tweeted:

Prices of raw ivory in Vietnam have fallen, which traders are linking to China’s announcement of its domestic ivory ban, according to new research

The price of raw ivory in Asia has fallen dramatically since the Chinese government announced plans to ban its domestic legal ivory trade, according to new research seen by the Guardian. Poaching, however, is not dropping in parallel.

Undercover investigators from the Wildlife Justice Commission (WJC) have been visiting traders in Hanoi over the last three years. In 2015 they were being offered raw ivory for an average of US$1322/kg in 2015, but by October 2016 that price had dropped to $750/kg, and by February this year prices were as much as 50% lower overall, at $660/kg.

The red squirrel is under threat of extinction across Britain. Their supporters believe the only way to save them is to exterminate their enemy: the greys. But are they just prejudiced against non-native species? By Patrick Barkham

One snowy dawn in March, I went hunting for squirrels in the Lake District. In the silent and empty woods beneath the Aira Force waterfall, the only thing moving was a solitary red squirrel, balanced on a nut-filled feeder hanging from a tree. If you grew up, as I did, with the grey squirrel, seeing a red squirrel is a shock. We’re used to the grey – a sleek, North American import, swaggering across parks, raiding bird tables, all fat haunches and bulbous black eyes. In contrast, the red squirrel, although native to Britain, looks exotic: so dainty and alertly pretty, with fine tufts of hair above its ears as extravagant as the eyebrows of Denis Healey. Here, in the snow, this forest sprite quivered with improbable, balletic grace and then – clang – slipped on the icy lid of the feeder and fell to the ground. It landed on its feet.

Julie Bailey, a former gymnast with a cascade of red hair, had picked me up from the nearby town of Penrith and driven her black 4x4 along slushy roads to admire this natural acrobat. At Aira Force, she stepped out of the car and, leaning on a stick, walked carefully across the snow. She and her husband, Phil, used to enjoy watching red squirrels at their feeders in the garden; these animals were still a common sight across northern Cumbria a decade or so ago. Bailey worked in pharmaceuticals and coached boys in gymnastics, including her son. But in 2005, she broke her back. She couldn’t walk for four years. Seventeen spinal operations later, she only walks thanks to a spinal cord stimulator, powered by a battery in her stomach. When it malfunctions, she collapses. She doesn’t make a fuss, but she is in pain 24 hours a day and is intolerant to painkillers. “Because I was stuck at home,” she said, “I started taking more notice of my squirrels. They really gave me a purpose.”

Inverlael, Highlands The bog is dirt-black and soupy, threatening to mire us at every step. All we can do is give the horses free rein to seek a safe route

At the weir at Glenbeg, we abandon the path and head west, using the river as a guide. The bog is dirt-black and soupy, threatening to mire us at every step; all we can do is give the horses free rein to seek a safe route through the morass. They lower their heads, ears pricked as they inspect the ground, and veer off along sheep-trodden detours, leaping sloughs and streamlets. Highland ponies in their element.

Where the river branches, we follow the tributary high onto a plateau to the east of Eididh nan Clach Geala, a Munro whose Gaelic name suggests it to be “clothed” in white rock: gleaming, boulders of quartz that glimmer, unnervingly clean and sharp as bared teeth. On a good day, one can see the Summer Isles or the stark lines of Assynt, where lone mountains rear up from the flats. But, today, low clouds have closed around us, brushing past damply, and the steady, relentless rain hasn’t faltered since we woke.

In a televised address, French president Emmanuel Macron rules out any renegotiation after Donald Trump pulled out of the Paris agreement on Thursday, calling the move a mistake. Macron, speaking in French and English, urged scientists, engineers, entrepreneurs and anyone disappointed by the decision to see France as a ‘second homeland’, adding: ‘I call on them come and work here with us.’ The French president said: ‘The Paris agreement remain irreversible and will be implemented not just by France but by all the other nations. We will succeed because we are fully committed, because wherever we live, whoever we are, we all share the same responsibility: make our planet great again.’

Donald Trump made a range of claims in his speech. Here, environment reporter Oliver Milman sifts through his statements

• Paris climate agreement: world reacts as Trump pulls out of global accord – live
• The full text of Trump’s speech: Draconian accord dumped
• Full report: Donald Trump confirms US will quit Paris climate agreement

So we’re getting out. But we will start to negotiate, and we will see if we can make a deal that’s fair. And if we can, that’s great. And if we can’t, that’s fine.

So that’s that. After months of fevered speculation and lobbying, Trump sticks to his campaign pledge to withdraw the US from the Paris climate accord. He does so with a caveat that’s delivered rather casually – the US will renegotiate this pact, or maybe some other pact, aimed at ensuring the future liveability of the planet. But if it doesn’t work out, that’s OK.

Trump’s confirmed withdrawal from the United Nation’s Paris climate deal shows it’s time to get to grips with the climate science denial industry

Moments before the US president, Donald Trump, strode into the Rose Garden, TV cameras pictured his chief strategist, Steve Bannon, shaking hands and looking generally pleased with himself.

Bannon once called global warming a “manufactured crisis”.

Energy minister Josh Frydenberg says he’s disappointed with US decision but believes 26-28% emissions reductions by 2030 on 2050 levels are reasonable

The Coalition government has recommitted to Australia’s emissions targets in the Paris agreement after Donald Trump’s withdrawal but Malcolm Turnbull faces internal division as conservative MPs celebrated the American decision.

The energy and environment minister, Josh Frydenberg, said he was disappointed with Trump’s decision but reiterated the Turnbull government’s full commitment to the Paris deal.

Joint statement by France, Germany and Italy says deal cannot be redrafted, and calls on allies to speed up efforts to combat climate change

European leaders dismissed Donald Trump’s claim that the Paris climate accord can be renegotiated after the US president announced he will pull out of the deal struck in 2015 to seek better terms.

Shortly after Trump’s announcement the leaders of France, Germany and Italy released a joint statement rejecting Trump’s assertion that the climate deal can be redrafted.

Donald Trump made a speech at the White House on Thursday in which he confirmed the US would be withdrawing from the Paris climate agreement. Over nearly 25 minutes, Trump argued that the agreement was bad for America, but said he’d be open to renegotiating a deal which was ‘fair to the United States’

• Donald Trump confirms US will quit Paris climate agreement

• Former president had spent years negotiating for landmark climate accord
• Mitch McConnell: ‘Trump has put families and jobs ahead of leftwing ideology’

Barack Obama led condemnation of his successor’s decision to withdraw from the landmark Paris climate accord, which the former president’s administration painstakingly negotiated over the course of several years.

In a statement released just before Donald Trump officially announced that the US would remove itself from the deal, Obama said the administration had joined “a small handful of nations that reject the future”. He warned that the more than 190 countries that remain participants will “reap the benefits in jobs and industries created”, but he said that US states, cities and businesses “will step up and do even more to lead the way, and help protect for future generations the one planet we’ve got.”

Donald Trump announces US will be withdrawing from the Paris climate accord ‘to protect America and its citizens’ and seek a new deal ‘on terms that are fair to the United States... but if we can’t, that’s fine’

• Donald Trump confirms US will quit Paris climate agreement
• Paris climate agreement: Trump withdraws US from global accord – live

Conditions over the past few years are putting stress on butterfly populations as food sources are diminished, but certain species are thriving

A beautiful creature has fluttered into my path. Well, actually, it landed on the doormat with a resounding thud. The Butterflies of Sussex might sound of limited geographical interest but it’s the best new butterfly guidebook in the country.

Newcomers will enjoy the fascinating anecdotes and beautiful photos by lepidopterist Neil Hulme. Obsessives searching for the elusive purple emperor will gobble up the grid references for the “master trees” around which male emperors congregate shortly after midsummer.