Every minute, satellites and sensors collect enormous amounts of data about the world around us – from temperature to pollution and forest cover to soil quality. This month, Horizon looks into the technologies behind Earth observation and how we can make best use of the vast amounts of information produced. We find out how measurements taken by people with smartphones on the ground can feed into local datasets and how the minituarisation of satellites is creating opportunities for start-ups to enter the Earth observation market. We also discover how measurements are being used to protect ecosystems and what historical data can tell us about extreme weather such as hurricanes and droughts.
Tiny, low-cost satellites that can work together to boost their output and a technology that reduces the loss of satellite data are two of the latest innovations to hit the Earth observation market – and the results promise to reveal a more detailed image of our planet.
An analysis of a newly cleaned-up dataset tracking Europe’s air pollution has revealed that nitrogen dioxide levels are on a steeper downward trend than previously thought, according to Dr Folkert Boersma from the Royal Netherlands Meteorological Institute, who says that ensuring the quality of Earth observation data can reveal new insights into climate change.
From droughts and forest fires to floods and big freezes, extreme weather events are on the rise. But to what extent are these linked to climate change? Just months before the world’s first wind monitoring satellite enters orbit, scientists have finalised a climate model with exceptional resolution, and the new tools will help identify how climate change impacts weather-related natural disasters like storm surges, hurricanes and heatwaves.
In March 2018, French scientists reported a steep decline in the country’s bird populations, primarily as a result of agricultural activity. Causes include the increase in monoculture, detrimental land-use policies and, perhaps most importantly, the growth in the use of powerful pesticides such as neonicotinoids, which, by killing off insects, reduces the bird population by reducing the food available to them.
The world looks very different from this time last year. The coronavirus pandemic has highlighted the centrality of science, research and innovation, accelerated some changes already in the works, but also exposed our weaknesses. In September, Horizon looks at how the pandemic is reshaping Europe in areas including health research, work, tech, transport and food – and how research can contribute to Europe’s recovery over the coming years. We will also be covering the European Research & Innovation Days at the end of the month, which will bring together scientists, policymakers, entrepreneurs and citizens to debate how research and innovation can ensure that the transition to a post-coronavirus society is sustainable, inclusive and resilient.
In August, Horizon looks at one of the features that makes Earth unique and habitable: plate tectonics. We explore what we know – and still don’t know – about how the shifting plates beneath our feet shape our planet. We speak to researcher Dr Kate Rychert, who wants to understand what makes a plate plate-like, and delve into one of the outstanding mysteries in the subject – how and why plate tectonics began. We find out about the link between mountain formation, erosion and climate change, and we look at what moonquakes and marsquakes can reveal about tectonic activity elsewhere.
European governments need to provide investment on a ‘wartime footing’ to stimulate a post-coronavirus economic recovery, but also need to redefine economic success to incorporate climate and social goals, the European Research and Innovation Days conference has heard.
The Covid-19 crisis provides an opportunity to reshape Europe’s economy, conference heard.
'Frontier research' scientists share how they are fighting Covid-19.
Dr Kate Rychert studies ocean plate structures.