Category Archives: Climate Change

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Unravelling the Mystery: Investigating the Decline of Monarch Butterflies in Mexico

As a result of pesticides and Climate Change, the endangered insect species lost approximately 59% of their entire population in Mexico within the past year. This is the second-lowest recorded population of Monarch butterflies in Mexico in history. The species population is not counted individually, but rather by the hectares they cover, this year the level reached 0.9 hectares, dropping from a prior 2.21 hectares. With the lowest level being in 2013, at 0.67 hectares. for scale the largest international football field is approximately 0.82 hectares.

“It has a lot to do with climate change,” stated Gloria Tavera, the commission’s conservation director. She cited natural phenomena such as storms, drought and higher temperatures, all induced to higher extremes by climate change.

the largest contributor by far to the species’ decline is illegal logging, which caused a 58.7 hectare loss of habitat, which is roughly equivalent to 71.5 largest international football fields, or 3 of the Rungrado North Korean Stadium.

https://www.theguardian.com/environment/2024/feb/08/monarch-butterfly-population-numbers-decline-endangered-mexico#:~:text=Deforestation%20in%20the%20Mexican%20forests,of%20forest%20cover%20was%20lost.

Proposed Sixth Category of Hurricanes

Scientists have found that the strength of hurricanes has been dramatically increased as a result of the climate crisis. The proposal is for hurricanes to fall into a sixth category if they have sustained winds greater than 192mph. The highest current category, 5, includes storms of 157mph or higher.

The increasing strength of hurricanes is a result of warmer oceans from climate change providing more energy to storms. Storms such as Hurricane Patricia from 2015, which reached a top wind speed of 215mph, would fit into the proposed sixth category.

https://www.theguardian.com/world/2024/feb/05/hurricanes-becoming-so-strong-that-new-category-needed-study-says

Restoration of endangered rainforest in Devon

‘Ancient rainforest to be restored in Devon, with 100,000 trees planted this winter’

In north Devon about 100,000 new trees have been planted as an ‘attempt to boost wildlife’ by providing new habitats. This also acts as a carbon store and aims to ‘offset climate change… purify air and water’ while creating a ‘species-rich’ area.

https://news.sky.com/story/ancient-rainforest-to-be-restored-in-devon-with-100-000-trees-planted-this-winter-13059228

Global warming could cause butterflies to lose their spots

Scientists from the University of Exeter found that Meadow Brown butterflies have fewer spots if they develop in warmer weather. The change, which helps them blend in to a browner landscape, means that some species might not move north but stay where they are.
Females that developed at 11°C had six spots on average, whereas those that developed at 15°C had just three.
This means that if temperatures around the world continue to rise, this species of butterfly could become less spotty possibly changing the way it camouflages itself and stays safe from predators.
They also found that temperatures did not affect the males the same way it did with the females.

Recent Global Weather Phenomena

Due to Strom Henk, England experiences high levels of flooding, many railways and roads have been declared unsafe to use due to a staggering approximately 300 flood warnings in place issued by the Environmental Agency, and over 330 flood alerts. Flood warning indicate that there will almost certainly be a flood in the particular area, and flood alerts bring attention to areas that have a chance of flooding, but are less likely to do so.

https://www.theguardian.com/uk-news/live/2024/jan/05/uk-weather-storm-henk-rain-flooding-england-latest-news

Beijing experiences it’s coldest Winter since 1951, with temperatures remaining below freezing (-10 Degrees Celsius) consistently for over 300 hours, alongside blizzards and snow storms that lasted throughout the duration of December.

https://www.theguardian.com/world/2024/jan/05/weather-tracker-beijing-experiences-coldest-december-since-1951

Many species are displaced, following a cyclone, record breaking flooding, power outages and water deficiencies. The added threat alongside dealing with the aftermath of saltwater crocodiles appearing in unusual places only adds to the chaos the locals in Queensland are experiencing.

https://www.theguardian.com/australia-news/2023/dec/18/north-queensland-floods-crocodile-ingham-drain-wujal-wujal

Current Affairs: Himalayan Lake Flooding In India

https://www.reuters.com/world/india/fourteen-dead-102-missing-after-indian-glacial-lake-bursts-bank-heavy-rain-2023-10-05/

Above is a link to a website regarding the recent a burst in the Himalayan lake earlier this month. This sudden burst could be because of the heavy monsoon rains and us also being in a El Nino year.

This interested me because my IA has been somewhat based around El Nino’s, Floods and Droughts so over the course of doing my IA it has become a topic I have been regularly investigating. Just knowing these extreme El Nino’s are occurring is quite concerning as they are becoming more frequent and gaining severity which is also do the rise in global temperatures. I believe this will be a sort of wake up call for the world because it really emphasises that our actions, big or small, have consequences.

With regard to what an El Nino is by using the NOAA website “An El Nino condition occurs when surface water in the equatorial Pacific becomes warmer than average and east winds blow weaker than normal. The opposite condition is called La Nina. During this phase of ENSO, the water is cooler than normal and the east winds are stronger. El Niños typically occur every 3 to 5 years.”

https://www.noaa.gov/education/resource-collections/weather-atmosphere/el-nino#:~:text=An%20El%20Ni%C3%B1o%20condition%20occurs,the%20east%20winds%20are%20stronger.

How do you believe we can combat how frequent the El Nino’s are occurring and lower the risks ? Do you think we are beyond the point of redemption?

Current Affairs- Amazon River Dolphins : Death- El Nino & Impact

The deaths of 120 river dolphins in a tributary of the Amazon River are believed to be linked to a severe drought and high temperatures.

  • Low river levels during the drought have led to water temperatures that are harmful to the dolphins.
  • The Amazon River dolphin (Inia geoffrensis) is a species of toothed whale that lives in the rainforest rivers of South America. They are also known as the boto, bufeo, or pink river dolphin.
  • Known for their striking pink colour, are a unique freshwater species in South America and face vulnerability due to slow reproductive cycles.

EL NINO

These massive floods and extreme events are a cause of El Nino. El Niño is a climate pattern that describes the unusual warming of surface waters in the eastern tropical Pacific Ocean. This event has an impact on ocean temperatures, the speed and strength of ocean currents, the health of coastal fisheries and species, and local weather from Australia to South America and beyond. El Niño events occur irregularly at two- to seven-year intervals.

Effects on humans

Extreme temperatures caused by El Nino, lead to a loss of
livelihoods, spikes in hunger, malnutrition, food and
water insecurity, and deepening poverty and inequality,
hitting the most vulnerable the hardest. While
El Niño lasts for a short period, the impacts on
people, agricultural production, and the sustainable
development of affected countries can persist for years.
The scale and scope of the devastation for communities
in countries most affected by the current El Niño/La
Niña highlights gaps in responses and signals the need
for a new approach to address slow-onset, predictable
weather events in the context of climate change
. This
new approach must reflect the deeply integrated
challenges of promoting long-term development,
building resilient communities and reducing vulnerability
to natural disasters.

Florida turtle nests recovering.

A survey of nesting sites revealed a sharp increase in the amount of green sea turtle nests this year with volunteers counting more then 74,000 nests, a staggering 40% increase from 2017s record. The increase is most likely due to the conservation measures put in place after green sea turtles were listed under the endangered species act in 1978.


The catch is though, the sex of a baby sea turtle is not determined by its DNA but by the temperature of the sand in which its egg develops. cooler temperatures mean males and warmer means females. This is means that due to global warming most of the hatchlings are female. This will be a boom for the sea turtles as females can lay between 2 and 9 clutches of a 110 eggs each in a season but research suggests that climate change will outstrip the adaptive advantage of feminization.