Climate & Agriculture 5: Risk of declining (tropical) crop yields has been known for over 25 years

Not just from theoretical thinking, but as calculated outcomes of pioneering climate-crop prediction models – with studies from the early nineties already offering broad patterns of expected changes in agricultural productivity in a warming world. These patterns have of course … Continue reading

Climate & Agriculture 4: Yes, heat stress also affects wheat – recent European summers show

Part 3 of this series about the impacts of climate change on global agriculture was centred around a climate model study that indicated major global crop belts could experience production declines as a result of increased heat stress. These authors … Continue reading

Climate & Agriculture 3: Temperate and subtropical agriculture equally affected by heat stress

Our previous post focused on a study indicating climate change can lead to a net decline in African agricultural productivity – at least for five major food staples, with maize being the most important. The study also showed that it … Continue reading

Climate & Agriculture 2: African net agricultural productivity to decline for 5 major food staples

The impact of 21st century climate change on African agriculture deserves special attention, considering rapid population growth and the fact that the continent is currently already a net importer of agricultural products, while several sub-Saharan countries still depend for a … Continue reading

Climate & Agriculture 1: African food imports increase, while agricultural dependence stays high

Yes, we have many simultaneous climate series running here at Bits of Science. For instance one about the global temperature trend, another about sea level rise – and of course our series about climate change as a driver to the … Continue reading

Despite warming trend, Europe can expect several frosty winters – as solar activity drops to minimum

Northwest Europe can expect a couple of winters with relatively frosty conditions, as one key driver of the North Atlantic Oscillation (NAO) is set to favour blockades of westerlies, allowing periods dominated by a supply of cold and relatively dry … Continue reading

Climate Change & Anthropocene Extinction 47: Can species adapt by changing their fitness curves?

As we discussed in our previous article, ecologists use the term ‘fitness curve’ – or the synonymous ‘performance curve’ – to describe a climatological bandwidth within which a species can survive, including an optimum value and a critical minimum and … Continue reading

Climate Change & Anthropocene Extinction 46: Tropical insects vulnerable due to narrow fitness curve

You would think tropical species like warm weather – and what’s the difference between warm and 2 or 3 degrees warmer. Well, they can be picky. A short appendix to our previous article – a bit of supporting theory as … Continue reading

Climate Change & Anthropocene Extinction 45: Massive die-off tropical insects direct result of warming

Climate news does not get worse: new field data show total insect (and other arthropod) biomass in Central American rainforest has declined 10 to 60 times since the 1970s. Meanwhile also insectivores, like lizards, frogs and birds, are rapidly declining … Continue reading

Isostatic rebound Amundsen Bay: a negative feedback that acts on West Antarctic grounding line retreat

In our series ‘Understanding Sea Level Rise’ we’ve paid ample attention to positive melting feedbacks, mechanisms that accelerate ice melt and ice sheet dynamics as global temperatures keep rising. Now of course there are also negative feedbacks, like local relative … Continue reading