Daniela Granato’s Post

"Using a #FireSpreadModel, we investigate how several different plausible projections of mid-21st century climate could alter fire regimes for the moist temperate forests of the #PacificNorthwest and bracket the range of possible fire regime shifts that could be expected in the region. The largest increases to burn probability and fire size are likely to occur in the cooler, wetter northern forests (the #OlympicPeninsula and #WashingtonNorthCascades) and the Oregon West Cascades, with more moderate changes for the Oregon Coast Range and Washington West Cascades."

Climate is not a separate phenomena that impacts upon other earth systems. It is intimately linked, especially to ecosystems, that strongly regulate energy and water flows, thus exerting their own influence on climate.

#plankton Thank you The Guardian @FerrisJabr 'The smallest plankton are consumed by larger plankton, including the larvae of fish and crustaceans, which in turn feed a succession of bigger sea creatures, from herring and squid to seals and dolphins, so that plankton ultimately support all marine life. A single drop of seawater might contain tens of thousands of plankton on average, but at times it will hold many more.' 'Plankton are also a crucial component of both short- and long-term processes that sequester carbon and regulate global climate'. #VincentDoumeizel https://lnkd.in/d24HWbjh

The toll of those unprecedented conditions was etched into Bigelow 224’s trunk. Scorched by relentless heat and parched by a delayed monsoon, it appeared to stop growing midway through the season. The ring for this year is barely a dozen cells wide. It is a silent distress signal sent by one of Earth’s most enduring organisms. A warning written in wood. For decades, scientists have used rings from long-lived trees like ponderosa pines to uncover clues about ancient climates. Their analyses helped prove that human-made greenhouse gas emissions are warming the planet and demonstrated that modern climate extremes are unprecedented in the last 1,000 years. https://lnkd.in/gF8vC_jT

Over the past 20 years, the frequency and magnitude of extreme wildfires has DOUBLED and the six most extreme years for these events have occurred since 2017. For example, Australia's 2019-2020 "Black Summer Bushfires" caused major ecological, economic and social disruption: killing ~2.8 billion vertebrates, burning the entire geographic ranges of 116 plant species and releasing vast amounts of particulate and CO2 pollution into the atmosphere. The increasing frequency and magnitude of extreme wildfire events is growing in step with global heating, highlighting the urgency of adapting to a climate more conducive to extreme fires. To better understand the recent acceleration in these extreme events, a team at the University of Tasmania led by @Calum Cunningham analyzed 21 years of data from NASA - National Aeronautics and Space Administration to quantify the increasing frequency, intensity and geographical distribution of these events. Leveraging Satellite Technology for Wildfire Intelligence: The research team used 21 years of satellite data from the MODIS MCD14ML product to develop a new metric - the daily Fire Radiative Power sum (ΣFRP) - to quantify the energy released by wildfires. This approach offers a more nuanced understanding of fire behavior in response to climate change, surpassing traditional burned area metrics. The study showed that extreme wildfire events are disproportionately concentrated in specific regions: - Biogeographical realms: Nearctic and Australasia/Oceania - Biomes: Temperate conifer forests, Mediterranean forests/woodlands, and boreal forests Most concerningly, the escalation of extreme wildfires aligns closely with global heating trends. With 2023 marking both the hottest global temperature and the most extreme fire intensities on record, the link between climate change and wildfire behavior is glaring. These insights are crucial for targeting prevention and mitigation efforts in the most vulnerable ecosystems and emphasizes the critical need for adaptive strategies in a climate increasingly conducive to extreme fires. Link to full paper here: Increasing frequency and intensity of the most extreme wildfires on Earth  https://lnkd.in/eGKYcdpm #ClimateChange #ExtremeWildfires #ClimateTech #Sustainability #Innovation

Noah here, bringing a flood of information on sea level rise. In my day, I built an ark. Today, we need to build our #knowledge and take action. Discover the scientific insights and strategies to tackle this global challenge. #ClimateChange #SeaLevelRise #Sustainability https://lnkd.in/dZEYSc-U

"The frequency at which extreme fires occur around the world has more than doubled during the past two decades, according to an analysis of satellite data1. The trend is driven by the exponential growth of extreme fires across vast portions of Canada, the western United States and Russia, researchers say... The results provide the first solid evidence to support a nagging suspicion that many scientists and others have had as they watch a seemingly endless series of cataclysmic infernos scorch ecosystems and communities: wildfires have increased somehow, and climate change is almost certainly a factor." #satellitedata #earthobservation #wildfires #climatechange

🏔️✨ Nunatak Explained: Guardians of Climate Secrets ⁉️ Ever heard of nunataks? These majestic rock formations rise above glaciers and ice sheets, standing as solitary witnesses to the relentless effects of climate change. 🔬 Nunataks (from the Kalaallisut word Nunataq, “made from land”) are more than just stunning geological features. They reveal ancient climatic conditions because they remain ice-free while being surrounded by glaciers. This unique characteristic allows them to host plant species that have adapted to harsh, isolated conditions, offering a glimpse into past biodiversity and ecosystem responses to climate change. 🌡️ However, as global temperatures rise, glaciers melt, and the balance of these ecosystems is threatened. The survival of nunatak-specific flora and fauna hangs in the balance, echoing a larger story about the fragility of our natural world in the face of climate change. #Glacierwatch #Nunataks #Explainer #Nunataq #ClimateCrisis 📚 Sources: Bockheim, J.G. & McLeod, M. (2008). Nunataks and Climate Change: A Study of Ice-Free Ecosystems. Polar Biology. Hall, B.L. & Henderson, G.M. (2001). Use of isotopic measurements to evaluate the climate record of nunataks. Geophysical Research Letters.

Today's #DailyGeo: Amazon's Exceptional Drought Driven by Human-Induced Climate Change Human-caused climate change was the main driver of the Amazon rainforest's worst drought in at least half a century, according to a new study by World Weather Attribution (https://lnkd.in/exsQiDPy). The Amazon River Basin was in a state of exceptional drought for the entire year 2023. Containing the largest rainforest in the world, it is a global hotspot of biodiversity and a key part of the global hydrological and carbon cycle. One trigger for these dry conditions was El Niño, a natural weather system where sea surface temperatures increase in the Pacific Ocean, which affects global rainfall patterns. However, the team of researchers behind the study from the United Kingdom, Netherlands, and Brazil believe climate change driven by human activity to be the main driver of the extreme drought, with warming leading to less rainfall and more evaporation from plants and soils. The river levels are at the lowest levels in 120 years, threatening the plants, wildlife, and 30 million people who live in the Amazon basin. This map depicts the intensity of drought in the Amazon rainforest from June to November 2023. Map source: https://lnkd.in/gX2CHf99 🌍 The fate of the planet may rest on whether increased cooperation or conflict dominates in the next few decades as we respond to pressures brought by a changing climate. 🌍 Will we see cooperative measures aimed at mitigation and adaptation or violent conflict magnifying environmental disruptions and degrading global governance and markets? 🌍 By 2050, will the nations of the world be working together collaboratively to reduce greenhouse gas concentrations, share innovations in climate adaptation, and address inequities and humanitarian emergencies? 🌍 Or will they be vying for control over highly stressed natural resources, hardening their borders and restricting trade and mobility, withdrawing from global agreements, and spending more on militaries than on climate solutions? 🌍 What will the future geography of cooperation and conflict look like around the globe? Join us at Geography2050 this November 21-22, 2024, in New York City! Learn more here: https://lnkd.in/gvDDPtA9 Read our DailyGeo here: https://lnkd.in/gXgxfVck #geography #earth #geoscience #geopolitics #climatechange #climate #news #worldnews #cooperation #conflict #politics #world #gis #geoAI #climatescience #climatology #geographicinformationsystems #geographic #politicalscience #politicalrisk #development #internationaldevelopment #internationalaffairs