Supplementary information for the project 'Climate Change: Evidence and causes'.
Climate change is not a scary thing that might happen in the future. It is here, and
A gap in data from the Arctic helped promote the faulty idea that climate change was slowing, a new study finds.
The Evident Project is a photography-led campaign focusing on the impact of the climate crisis, biodiversity loss, and the causes of viral pandemics
All sorts of records are being broken in all sorts of places | Science & technology
Looking for a no prep activity where students analyze data? In this virtual lab, students collect and analyze data from two digital lab activities about air pressure and temperature in the atmosphere to answer the question: How does altitude affect temperature and air pressure?After collecting and...
The UN climate chief is confident that the Paris summit can make history and produce a landmark deal to limit future carbon emissions – but any success depends on her pivotal role
Sign up to receive our latest reporting on climate change, energy and environmental justice, sent directly to your inbox. Subscribe here. Earth’s temperature is rising, and it isn’t just in the air around us. More than 90 percent of the excess heat trapped by greenhouse gas emissions has been absorbed into the oceans that cover two-thirds […]
Planet Earth experienced a global climate shift in the late 1980s on an unprecedented scale, fueled by anthropogenic warming and a volcanic eruption, according to new research. Scientists say that a major step change, or 'regime shift,' in Earth's biophysical systems, from the upper atmosphere to the depths of the ocean and from the Arctic to Antarctica, was centered around 1987, and was sparked by the El Chichón volcanic eruption in Mexico five years earlier.
Master CER with engaging Claim Evidence and Reasoning CER Practice Worksheets Templates Graphic Organizer, no-prep science current events! Tap into critical thinking and writing skills with this ready-to-use 60+ science article bundle. Explore a variety of science topics through guided CER practice.
Need proof that climate change is real, and caused by human emissions? Read on.
Tree rings, with their special characteristics of precise dating, annual resolution, long time series and climate sensitivity, have been widely considered a useful proxy for past climate variations. A cross section cut reveals climate-sensitive tree rings in a Scots pine (Pinus sylvestris L.), one of the species used for soil-moisture reconstruction in inner East Asia [Credit: PENG ZHAN] Researchers at the Institute of Botany of the Chinese Academy of Sciences have given an overview on using tree rings to identify climate regime shifts in a perspective paper published in Science. In the paper, Prof. ZHANG Qi-Bin and Dr. FANG Ouya provided background in the field and discussed its advances. They also referenced a paper reporting a recent climate regime shift to a hotter and drier climate over inner East Asia, which was written by lead author ZHANG Peng from South Korea and published in the same issue of Science. "Careful attention is required when using tree rings to reconstruct a specific climate variable over a large geographical region," said Prof. ZHANG Qi-Bin. "Signals from the macroclimate must be extracted efficiently while removing the nonclimate noise embedded in the tree rings." Changes in climate have dramatic effects on natural ecosystems and human society. Less well understood is whether these changes are irreversible beyond a certain tipping point, that is, whether they represent a climate regime shift. Scientists worldwide are alarmed about the potential risks of abrupt climate changes and their impacts on ecosystems and society, yet it is still difficult to identify the exact occurrence of climate regime shifts. To judge whether climate systems undergo regime shifts from one steady state to another, scientists must understand the natural range of climate variability over a time scale that is much longer than the new regime. ZHANG Peng et al. compiled tree-ring width data from 76 sites throughout inner East Asia and successfully screened 20 sites with strong signals of summer heatwave frequency and soil moisture content. They found that the magnitude of the warm and dry anomalies compounding in the past two decades is unprecedented over the past 260 years. They further illustrated that the heatwaves and droughts became tightly coupled, which is likely caused by a pronounced enhancement of land-atmosphere coupling along with anthropogenic climate change. However, it is still challenging for scientists to disentangle the interaction of climate variables and clarify whether these interactions generate negative or positive feedbacks, according to Prof. ZHANG Qi-Bin and Dr. FANG. Furthermore, spatial differences related to climate regime shifts are worthy of study. Using tree-ring data as a proxy for past climate variability and forest dynamics, Prof. ZHANG Qi-Bin's lab has long been engaged in investigating the responses of tree growth to multiple dimensions of climate change and ecological disturbances, and in exploring spatial and temporal patterns of forest health. Source: Chinese Academy of Sciences [November 27, 2020] Support The Archaeology News Network with a small donation! Labels Climate Change, Earth Science, East Asia, Palaeoclimate, Palaeontology TANN you might also like Newer Post Older Post
Our heat-stricken planet is orbiting through the end of a year that humanity might rather forget. But several recent climate reports tell us that 2018 may be remembered as a turning point, for better or worse, in the fight to cap global warming. Compelling new evidence shows we will speed past a dangerous climate-risk threshold […]
In a first of-its-kind study, NASA finds direct evidence linking human beings to climate change. CBS News meteorologist and climate specialist Jeff Berardell...
This paper analyses gender differences in awareness and adoption of climate-smart agricultural (CSA) practices. It examines what factors are associated with the likelihood of adoption of a wide range of CSA practices for 376 women and 375 men in two different areas of Kenya. This information is aimed at improving the targeting and design of interventions that are trying to achieve greater and more equitable agricultural development in East Africa and elsewhere.
The 86-year-old social scientist says accepting the impending end of most life on Earth might be the very thing needed to help us prolong it
The debate on human environmental impact has often been locked into cause–effect reasoning, aiming at factoring human impact on top of climatic variability. Here we use evidence from Minorca and the ...
Free Claim Evidence Reasoning Practice Pages and Slide Show for middle school science.
The Atlantic meridional overturning circulation, a system of currents, has long been considered capable of a sudden shutdown, which could have dramatic climate effects.
Synthesizing research on which policies are most effective is a key priority in climate science, advocates say.
