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In a groundbreaking experiment conducted in Colorado's Rocky Mountain meadows, scientists heated a patch of land by 2C for 29 years. The results are alarming: the area transformed from a lush, diverse grassland into a desert-like scrubland dominated by sagebrush. This 'shrubification' process, driven by rising temperatures, threatens the very existence of alpine grasslands worldwide.The experiment, conducted at the Rocky Mountain Biological Laboratory, involved warming five plots of 30 sq meters each by 2C using electric infrared radiators. The results showed a 150% increase in shrubs in warmed plots compared to those without heating. The surface soil dried by up to 20%, and shallow-rooted plants became stressed, leading to the extinction of some wildflowers.The implications extend far beyond Colorado. Alpine grasslands, which host 50% of European flora on just 3% of land, are particularly vulnerable. As temperatures rise, these ecosystems are likely to be irrevocably changed, leading to a loss of biodiversity. The phenomenon of 'shrubification' is not limited to mountain environments; it's also observed in Arctic landscapes, where shrub cover expanded by 2.2% each decade between 1984 and 2020.Conservation ecologists warn that while shrubs and trees bring benefits like shelter and carbon sequestration, their rapid expansion in cold environments is a symptom of climate change. The speed and scale of these changes are concerning, with potential knock-on impacts on the carbon cycle and ecosystem balance.As Lara Souza, lead researcher, notes, 'It's like flowers on steroids.' However, this vision of abundance is tinged with sadness at the prospect of irreversible changes to fragile landscapes. The future of these ecosystems, and many others like them, hangs in the balance as global temperatures continue to rise.

Mircea Lucescu, Romania's 80-year-old football manager, is defying his physical limitations to pursue his country's World Cup aspirations. Lucescu has been hospitalized three times since December but remains resolute in his mission to lead Romania to their first World Cup in 28 years. Lucescu's determination is rooted in his passion for football and his sense of duty to Romanian football. He believes that his team has a chance to qualify for the World Cup and is focused on preparing them for the playoff semi-final against Turkey. Despite his advanced age and health issues, Lucescu's energy and love for the game have not diminished. He has a long and illustrious career in football, having played for Romania at the 1970 World Cup and later managed the national team to several successful campaigns. Lucescu's approach to coaching emphasizes the importance of mental preparation and motivation. He believes that his players must be strongly motivated and able to control their emotions in order to succeed. The buildup to the Turkey game has not been easy for Lucescu, with injuries to key players Ionut Radu and Marius Marin. However, he remains focused on the task at hand and is determined to lead his team to victory. Lucescu's legacy in football is undeniable, with over 30 trophies won throughout his career. His second stint as Romania manager began shortly after the 2024 European Championship, and he is eager to make a lasting impact on the team. As Lucescu prepares for the playoff semi-final, he is also mindful of the broader context of Ukrainian football, having left a legacy in the country after 12 years at Shakhtar Donetsk and three with Dynamo Kyiv. He keeps in touch with his former players and friends in Ukraine, who are facing a difficult situation due to the ongoing conflict. Lucescu's ultimate goal is to help Romania qualify for the World Cup, not for personal glory but for the benefit of Romanian football. He hopes that his players will treat this game as a moment to mark a before and after, defining a generation and achieving an extraordinary feat for Romania.

Ukraine's national football team is on the brink of a significant achievement as they prepare to face Sweden in a crucial World Cup 2026 qualifier playoff. The match, set to take place in Valencia, Spain, represents a vital opportunity for Ukraine to end their 20-year absence from the World Cup. Serhiy Rebrov, Ukraine's manager, is determined to lead his team to victory, emphasizing the importance of representing their country amidst ongoing challenges.The Ukrainian team has faced considerable adversity, including the absence of key players due to injuries and the impact of Russia's full-scale invasion in February 2022. Ukraine has had to play numerous matches in various European cities, including Lodz, Prague, Leverkusen, and Warsaw, due to the conflict at home. Despite these challenges, Rebrov's squad has shown resilience, having recently qualified for Euro 2024 and narrowly missing out on a spot in the 2022 World Cup.Rebrov's determination is palpable as he highlights the significance of this match for his players and the nation. 'We have to do something for our people,' he says. 'They deserve this. I'm sure our players will fight on the pitch, show character, show everything just to be there.' The team's motivation is further amplified by the support of their fans, with approximately 20,000 expected to attend the match at the Estadi Ciutat de Valencia.On the other side, Sweden, under the management of Graham Potter, is also eager to secure a spot in the World Cup. Despite their own challenges, including injuries to key players like Alexander Isak and Dejan Kulusevski, Potter remains optimistic about his team's chances. The match promises to be a closely contested encounter, with both teams aware of the significance of a victory.Beyond the sporting aspect, the match also holds emotional value, as both countries have agreed to a long-term cooperation agreement, including the donation of football equipment to Ukrainian schools. This gesture underscores the power of sports to foster unity and support in times of adversity.

The UK government has taken a significant step in its ongoing efforts to counter Russia's attempts to evade Western sanctions. Armed forces have been authorized to board Russian oil tankers in British waters, a move aimed at disrupting Moscow's 'shadow fleet' of vessels.This fleet, comprising over 600 vessels targeted by sanctions from the EU, UK, and US, uses tactics such as false national flags and opaque ownership structures to export Russian crude oil while avoiding Western sanctions. The new rules apply specifically to vessels sanctioned by the UK.The Royal Navy has previously collaborated with allies to take action against these vessels. For instance, last week it helped track a sanctioned Russian oil tanker in the Mediterranean, which was subsequently boarded by the French navy.The UK's move is part of a broader strategy to hamper Russia's economy and, consequently, its war efforts in Ukraine. Prime Minister Starmer emphasized that the goal is to 'starve Putin's war machine of the dirty profits that fund his barbaric campaign in Ukraine.'However, Russia has warned that direct action against shadow fleet vessels could lead to direct conflict. A senior Russian official, Nikolai Patrushev, suggested that Moscow could deploy its navy to protect Russian-linked vessels from potential European seizures.The UK's defense secretary, John Healey, previously suggested using 'military options' against sanctioned vessels, with any seized oil potentially being sold and the proceeds sent to Ukraine.Before any ship is boarded, its situation will be examined by law enforcement, military, and energy market specialists, with a recommendation made to ministers. Seizure could be followed by criminal proceedings against the owners, operators, and crew for breaches of UK sanctions legislation.

Global markets experienced a significant shift as stock markets in Asia and Europe rose following reports that US President Donald Trump had sent a 15-point framework for peace to Iran. This development sparked hopes of a ceasefire in the Middle East, influencing market sentiment. The price of oil, which had fallen by 4% in early trading to below $100 (£75) per barrel of Brent crude, later recovered to approximately $100. This fluctuation was driven by the prospect of an end to the conflict easing the squeeze on oil supply. The straits of Hormuz, a vital shipping lane through which 20% of global oil supplies transit, had been effectively closed by Iran, causing a significant disruption to oil and gas shipments. Iran's announcement that it would permit “non-hostile” ships to pass safely through the strait of Hormuz helped to reopen this crucial waterway. This move, combined with the potential peace plan, contributed to the positive market sentiment. Stock markets in Asia saw notable gains, with Japan’s Nikkei rising by 2.9%, India’s S&P; BSE Sensex almost 2% higher, and Hong Kong’s Hang Seng up by just under 1%. European markets also saw increases, with the FTSE 100 in London up by almost 1%, Germany’s Dax trading 1.6% higher, and France’s Cac 40 climbing by 1.4%. However, Iran’s foreign affairs ministry informed the UN Security Council and the International Maritime Organization that “non-hostile” vessels could pass through the strait, which also poses a risk to global food security due to the disruption of fertiliser supplies. The World Trade Organization warned that this could lead to food price shocks. The conflict's impact on gold prices was also noted, as the metal traditionally seen as a safe haven asset during troubled times experienced a 13% decline to about $4,460 per ounce. Additionally, Larry Fink, CEO of BlackRock, warned that a prolonged conflict could lead to oil prices rising to $150 a barrel, potentially triggering a global recession.

Wales coach Craig Bellamy has urged his team to stay calm and focused ahead of their crucial World Cup playoff semi-final against Bosnia and Herzegovina on Thursday. Drawing inspiration from Usain Bolt's approach to high-pressure situations, Bellamy emphasized the need for his players to remain relaxed and composed under pressure.Bellamy, who has been in charge of Wales for nearly two years, believes that his team has the ability to perform at their best when they are calm and focused. He cited their seventh-ranked possession statistics in European countries since he took over, highlighting their ability to control games. The team has also shown resilience, with Ethan Ampadu deputizing for injured captain Ben Davies.The prize for success in the playoff is a spot at successive World Cups, which would not only bring prestige but also a significant financial boost and a positive impact on grassroots football in Wales. Bellamy is aware of the challenges posed by Bosnia and Herzegovina, having researched their background, culture, and squad composition. He noted that 11 of their 35-man squad were born in Bosnia, while the others come from the Netherlands, Germany, and Sweden.Bellamy expressed his confidence in his team's abilities, stating that “there won't be any regrets” regardless of the outcome. He emphasized that his team will give their all and that he is prepared for all possible outcomes. The coach also highlighted the importance of enjoying the experience and not letting pressure get to them, saying, “If you can't enjoy this and you only feel pressure, you ain't made for elite sport.”Wales' last experience in a playoff ended in pain, with Wojciech Szczesny being Poland's hero. However, Bellamy is determined to build a team capable of competing for top spot in qualifying and avoiding the need for playoffs in the future.

Israel's parliament has moved closer to implementing a contentious death penalty for Palestinians convicted of terrorism, with the Knesset's national security committee approving the measure on Tuesday. The bill, initiated by the far-right Otzma Yehudit party, now heads to its final vote.Critics, including human rights groups and UN experts, have strongly opposed the bill, citing concerns it violates international law and discriminates against Palestinians. The proposed law would allow for executions to be carried out within 90 days of sentencing, with hanging as the specified method.The bill also proposes that those sentenced to death be held in a separate facility with restricted visitation rights. Executions would be carried out without the option for clemency, a provision that has drawn sharp criticism from opponents.International condemnation has been swift, with UN experts urging Israel to withdraw the bill, stating it would violate the right to life and constitute cruel, inhuman, or degrading punishment. The European Union's diplomatic service has also condemned the bill, emphasizing that the death penalty is a violation of the right to life.In Israel, the bill has been backed by National Security Minister Itamar Ben-Gvir, who has worn a noose-shaped lapel pin in support of the measure. However, notable opposition has come from within Israel, including from centre-left lawmaker Gilad Kariv, who has raised concerns about the bill's moral and legal implications.

The UK government is set to trial social media curbs for teenagers in a major study aimed at understanding the impact of reduced social media use on young people's lives. Hundreds of UK teenagers will participate in the six-week pilot, which will test different restrictions on social media use, including bans, digital curfews, and time limits on popular apps like Instagram, TikTok, and Snapchat.The trial, led by the UK government, will involve 300 teens across all four nations of the UK, with some participants having their social apps disabled, while others will have access blocked overnight or capped to one hour's use. The goal is to gather evidence on how different restrictions affect young people's day-to-day lives.Technology Secretary Liz Kendall emphasized the importance of testing different options in the real world, stating that the pilots will provide the evidence needed to take the next steps, informed by the experiences of families themselves.The pilot is part of a broader effort to address concerns about the mental health risks associated with unfettered internet access. Nearly 30,000 parents and children have responded to the government's digital wellbeing consultation, which closes on May 26. An independent study, funded by the Wellcome Trust, will also examine the impact of reducing social media use among adolescents.The study, involving about 4,000 students between the ages of 12 and 15 from 10 Bradford secondary schools, will investigate changes in anxiety and sleep quality, time spent with friends and family, wellbeing, body image, social comparison, school absences, and bullying.The UK government faces pressure to follow Australia's move to ban access to social media sites for under-16s, with France, Spain, and Indonesia also considering similar bans. The European parliament has passed a resolution on age restrictions, although it is not legally binding.Critics argue that the pilot is a half-measure that puts pressure on parents rather than holding big tech accountable for the harm caused by social media. Bereaved parents have written to parliamentarians, urging them to support a ban and expressing concern about the consultation process.

Apple has introduced a new requirement for UK iPhone users, mandating them to confirm they are 18 or older to use certain services. This move, believed to be a first for a European market, comes as part of a broader effort to protect children online. The age verification process can be completed by uploading a credit card or scanning an ID, such as a driving license or national ID. Ofcom, the online regulator, has welcomed the change, calling it “a real win for children and families” and part of a wider drive to “keep young people away from harmful content”. The update is part of a software update and aims to restrict access to certain services and features for users under 18. However, some users have expressed concerns about the privacy implications of uploading personal information for age verification. Apple has assured users that if they already have an account, they can confirm their age with a payment method on file or other eligible methods. The company was unable to immediately specify which services, features, or actions would be inaccessible without age confirmation. This development follows the introduction of age verification gates on many web services, including pornography websites, to comply with the Online Safety Act. Ofcom noted that Apple’s decision makes the UK one of the first countries to receive new child safety protections on devices. The watchdog plans to report on the use of app stores by children and evaluate the effectiveness of age assurance by app store providers.