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What happens in Antarctica doesn't stay in Antarctica

2023-03-04T20:12:49+01:0013 February 2023|Categories: Earth and Sky|Tags: , , , |

Sono sempre più frequenti le notizie di enormi iceberg che si distaccano dalle banchise polari. L’ultima in ordine di tempo è quella relativa al blocco di ghiaccio staccatosi dalla piattaforma Brunt in Antartide [1], chiamato ora A-81. L’evento è stato immortalato dal satellite Sentinel-2 dell’ESA, che ha anche permesso agli esperti di monitorare tutte le fasi di formazione e allargamento della spaccatura sulla piattaforma, fino al distacco finale del blocco. Come al solito, ci si è sbizzarriti a trovare paragoni per la dimensione dell’iceberg; diciamo che l’estensione del pezzo di ghiaccio in questione è simile a due volte la [...]

Who caused climate change?

2022-11-03T18:58:31+01:003 November 2022|Categories: Earth and Sky|Tags: , , , |

The twenty-seventh Conference of the Parties begins on Sunday (COP27) of the United Nations on climate change. Quest’anno la conferenza si tiene a Sharm El-Sheikh in Egitto. Delegati di ogni paese del mondo sono chiamati a discutere le soluzioni politiche ed economiche alla crisi climatica. The science is clear: the cause of recent climate change is greenhouse gas emissions from human activities [1]. The main task of the conference is therefore to review (and possibly strengthen) national commitments to reduce greenhouse gas emissions and to find ways to implement them. Questo fa parte dell’insieme di misure adottate [...]

An extreme summer

2022-10-04T17:42:19+02:004 October 2022|Categories: Earth and Sky|Tags: , , |

Last summer has been difficult on the front of extreme events in the world. Let's start from Italy. After months of drought, in the evening of the 15 September the Marche region was affected by a self-regenerating storm, a very dangerous type of weather system, characterized by its ability to self-feed and stay on the same area for hours. We have already talked about this event in a post [2]. We only add some data that we did not have at the time. The disturbance led to very heavy rainfall, over 400 mm of cumulated rainfall in some areas, according to Protezione Civile [1]. In meteorology, 1 [...]

The Great Green Wall: story of a rebirth

2022-06-10T11:41:57+02:006 June 2022|Categories: Nature|Tags: , , , , |

Recent climate change does not have the same impact anywhere in the world. In fact, there are regions that are most affected by its effects., both from a social and economic point of view. In general, we talk about an increase of heat waves, sea level rise and soil aridity, and an increase in diseases transmissible to humans. All of this could get worse in the future and the scenarios are certainly not positive. If we weren't talking about global warming, you could say it doesn't rain but it pours. The worst effects of climate change are in fact seen in developing countries [...]

The climate has changed

2021-11-02T23:59:20+01:002 November 2021|Categories: Earth and Sky|Tags: , , , , , |

The climate has changed, Time is up. The twenty-sixth edition of the annual Conference of Parties (COP26), literally "Conference of the Parties", starts this week in Glasgow (Scotland), in collaboration between the UK and Italy. The conference is held one year after the originally scheduled date, due to the COVID-19 pandemic, and sets itself ambitious goals. We already talked about the COP a few months ago on the occasion of the US re-entry into the Paris Agreement, but perhaps it is appropriate to refresh the subject. In summary, the COP has been organized every year since 1995 by the United Nations, under the [...]

Welcome back, USA!

2021-07-03T17:43:04+02:0021 February 2021|Categories: Earth and Sky|Tags: , , , , , , , , |

The United States is finally part of the Paris climate agreement. Ready, to the posts, via. Just established, la nuova amministrazione a stelle e strisce di Joe Biden ha fatto rientrare gli USA nell'accordo sul clima di Parigi. This is a nice change of pace from Donald Trump's previous administration, who had decided to leave that agreement. For the occasion, climate expert Ed Hawkins has produced a special version of his famous warming stripes. Despite what some people think, the Paris Agreement does not only concern the citizens of the French capital, but all of us. But one question is legitimate: what's this [...]

Volcanic gases and their effect on the earth's climate

2019-06-27T18:45:09+02:0021 January 2016|Categories: No Category|Tags: , , , , , , |

Negli ultimi anni il tema del cambiamento climatico è divenuto sempre più importante e presente nella vita quotidiana di tutti: lo sfruttamento dei combustibili fossili e le attività industriali hanno provocato un eccessiva produzione di gas serra che, decennio dopo decennio, stanno portando ad una mutazione sempre più radicale ed irreversibile del clima terrestre. Un ruolo di spicco nell’evoluzione dell’atmosfera lo hanno sicuramente avuto i vulcani; si reputa, indeed, che alcune delle maggiori estinzioni di massa siano state provocate da mutamenti climatici indotti da immense eruzioni vulcaniche. Anche la più “recente” piccola era glaciale, avvenuta tra il XVI e il [...]

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