And, if actual policies rather than future promises are the baseline for such calculations, that number could prove to be 2.7 degrees Celsius, according to a new U.N. A new analysis by Climate Action Tracker suggests that, based on recent promises made at Glasgow, the global temperature could easily rise a disastrous 2.4 degrees Celsius. Right now, the best estimates are that the urge to keep global temperatures from rising above an already dangerous 1.5 degrees Celsius is little short of a fantasy. By century’s end, if climate change was not brought under control, that very area could become “the deadliest place on the planet for extreme future heatwaves” - and quite literally “unlivable.” ![]() After all, that region is central to China’s agriculture and home to hundreds of millions of people. I have to admit that, in 2018, when I first read in the Guardian that, later in this century, the deadliest place for climate-change-induced heat waves could prove to be the North China plain, I was shocked. So, don’t wait! Do it now, while the offer still stands! Tom] (If you live outside the U.S.A., make it $150 since it’s a big book and will be expensive to send abroad.) For that, you’ll get not only my deepest sense of appreciation, but a signed, personalized copy of To Govern the Globe from McCoy himself. Get a copy right now! Should you, however, want to offer some always much-needed support to TomDispatch right now, do visit our donation page and contribute at least $100. Alfred McCoy’s immensely readable narrative spans centuries, charting the rise and fall of successive world orders down to our own present moment shaped by China’s emergence as a great power and the blight of climate change.” Of it, Tom Engelhardt says, “To Govern the Globe explains our world to us in a way that I found endlessly illuminating and genuinely riveting (and I edited it!).” Al McCoy’s eloquently written book is a call to action for us all, as time still remains to prevent an unprecedented cascade of catastrophes.” Of it, Andrew Bacevich says, “To Govern the Globe is history on an epic scale - sweeping, provocative, and unsparing in its judgments. Believe me, it’s a tour de force and one hell of a book! Of it, Amy Goodman says, “To Govern the Globe is a brilliant distillation of 700 years of geopolitics, exposing how we arrived where we are, amidst the worsening climate crisis and collapsing world orders. Ultimately, this study reveals that small, fast-growing copepods can contribute just as much, if not more, energy to higher trophic levels in eutrophic tropical estuaries compared to temperate regions.[ Note for TomDispatch Readers: This is a big day for Dispatch Books! TomDispatch regular Alfred McCoy’s To Govern the Globe, his history of empire that sweeps you across five continents and seven centuries into our own moment (and beyond), was just published. Results from this study highlight the need for accurate estimates of crustacean production rates in order to fully understand trophic relationships given that biomass, alone, did not explain the short-term variability in crustacean production. Chitobiase-based daily P/ B and crustacean production rates were almost always higher than production estimates from global models. No relationship was found between production rates and biomass, suggesting that biomass, alone, does not explain productivity in Guanabara Bay. Mean crustacean productivity over our sampling period was 22.0 mg C m -3 d -1, varying more over monthly timescales compared to weekly or daily variations. Copepod biomass was negatively related to dissolved oxygen and tidal amplitude, characteristic of the highly eutrophic waters from the inner bay. ![]() ![]() Mean copepod biomass was 24.0 mg C m -3 over the sampling period, while daily P/ B ranged between 0.15 and 1.20. We examined the abiotic and biotic factors most strongly influencing copepod biomass, daily P/ B, and production rates. Chitobiase-based daily production to biomass ratios ( P/ B) and production rates were compared to values derived from more traditional global predictive models. Here, we use the crustacean moulting enzyme chitobiase to obtain routine estimates of community-level crustacean productivity over a 3-mo period in Guanabara Bay, Rio de Janeiro, Brazil. ![]() *Corresponding author: Although tropical oceans are generally assumed to have low zooplankton biomass throughout the year, high copepod abundance coupled with fast growth rates can result in a significant amount of crustacean zooplankton production.
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