Key keywords: June heatwave 2024, first 110 days of 2024, global temperature anomaly, extreme weather warning, climate change impact, El Niño residual effect, summer heat forecast, public heat health risk According to the latest monitoring report released by the European Union's Copernicus Climate Change Service on May 29, 2024, the first 110 days of this year have recorded the highest global average temperature since meteorological records began in 1850, with an average temperature 1.62°C higher than the pre-industrial baseline, exceeding the 1.5°C threshold set out in the Paris Agreement for long-term temperature rise control for the first time in a year-to-date period. The unseasonably high temperature trend has extended into early June, with more than 20 countries across Southern Europe, Southeast Asia, North America and North Africa reporting record high temperatures for early June as of June 5. In Spain, multiple inland cities recorded temperatures exceeding 38°C in the first week of June, 7°C to 9°C higher than the historical average for the same period; in Thailand, the capital Bangkok saw temperatures hit 41°C on June 3, with the heat index exceeding 50°C, leading to more than 300 hospitalizations for heat-related illnesses in just three days; in the southwestern United States, Arizona and Nevada have recorded 12 consecutive days of temperatures above 37°C, triggering early wildfire warnings across 17 counties. Meteorological agencies across multiple regions have jointly issued forecasts confirming that more intense June heat is on the way, with the second half of June expected to bring heatwaves 3°C to 6°C above the seasonal average to most of the Northern Hemisphere. The ongoing heat is driven by a combination of residual effects of the 2023-2024 El Niño event and long-term global warming caused by greenhouse gas emissions, according to the World Meteorological Organization. The WMO also warned that the 2024 northern hemisphere summer is likely to be the hottest on record, with frequent extreme heat events posing severe risks to public health, agricultural production, energy supply and ecological stability. Agricultural experts have pointed out that the ongoing early June heat has already caused damage to staple crop cultivation: rice planting progress in Southeast Asia has been delayed by 15% on average due to high temperature evaporation leading to drought, and olive production in the Mediterranean region is expected to drop by 22% year-on-year if the late June heatwave arrives as forecast. On the public health front, the World Health Organization has called on all countries to activate heat emergency response mechanisms as soon as possible, including setting up public cooling centers, issuing targeted heat safety reminders to vulnerable groups such as the elderly, children and outdoor workers, and upgrading the power grid to cope with the surge in demand for cooling electricity. Climate policy researchers emphasized that the record high temperature in the first 110 days of the year is not an isolated event, but a clear signal that the impact of climate change has entered a more intense stage, urging global governments to accelerate the transition from fossil fuels to renewable energy to curb further temperature rise.