From Madagascar to the Amazon, warming could threaten up to 50% of species

From Madagascar to the Amazon and even to the Great Plains, climate change could threaten between a quarter and a half of species by 2080 in 33 of the world's most biodiverse regions, according to a report Wednesday.

A + 4.5 ° C warming compared to the Industrial Revolution – horizon that would emerge if nothing was done to reduce emissions of greenhouse gases – 48% of species would be likely to disappear at the local level.

But this risk would be halved if the increase in average temperature was contained at + 2 ° C, the limit set in the Paris agreement adopted in 2015 under the auspices of the UN, notes this analysis published by the review Climatic Change.

"Global biodiversity will suffer terribly during this century, unless we do everything in our power" against this, warns the Global Fund for nature (WWF) , which co-produced the study, presented as the most complete on these thirty zones.

Everywhere, the climate is added to the threats already weighing on the fauna and the flora: urbanization, loss of habitats, poaching, unsustainable agriculture …

 From Madagascar to the Amazon and even to the Great Plains, climate change could threaten between a quarter and a half of species by 2080 in 33 of the world's most rich in biodiversity, according to a report (AFP / Archives - Noah SEELAM)

From Madagascar to the Amazon and even in the American Great Plains, climate change could threaten between a quarter and half of species by 2080 in 33 regions of the world's richest in biodiversity, according to a report (AFP / Archives – Noah SEELAM)

Researchers from the universities of East Anglia (United Kingdom) and James-Cook (Australia) studied the climatic situation of 80,000 th Species in 33 regions considered "priority", as unique and diverse as the Amazon, the Namibian desert, the Himalayas, Borneo, Lake Baikal or southern Chile.

The now exceptionally warm seasons should become the norm, sometimes as early as 2030, and even with limited warming at + 2 ° C. More significant heat spikes, lower precipitation, long-lasting droughts are expected in many places.

Over these areas, more than half of the area (56%) would remain liveable at + 2 ° C. At + 4.5 ° C, this share could fall to 18%: what the WWF calls "refuge" zones.

– More mobile birds and mammals –

 The Great Barrier Reef, Australia , near the Whitsunday Islands coast, photographed on November 20, 2014 (AFP / Archives - SARAH LAI, SARAH LAI)

The Great Barrier Reef, Australia, near the Whitsunday Islands coast, photographed on November 20, 2014 (AFP / Archives – SARAH LAI, SARAH LAI)

Plants should be particularly affected, slower to adapt, moving less easily. Which in turn will harm the dependent animals.

At + 4.5 ° C, 69% of the plant species may disappear in the Amazon.

On the animal side, reptiles and amphibians are more likely to be " obsolete "than birds or mammals, more mobile."

Much will depend on the ability of species to move to follow their preferred climate: can they follow? Will they be blocked, for example by cities, mountains? Will they, on arrival, have a place to live?

Southwestern Australia, in the worst case scenario, sees close to 80% of locally endangered mammal species, a loss reduced to third in a world at + 2 ° C and in case of adaptability of species

Conclusion: "it will take much more important efforts to keep the temperature rise to their absolute minimum", insists the WWF.

At this stage, the emission reduction commitments made in Paris lead the globe towards a warming of more than 3 ° C. However, at + 3.2 ° C, 37% of the species are still at risk of disappearing locally, in the regions studied.

In addition, since the gases already emitted will continue to warm the planet, it will also be necessary to provide protective measures. local: biological corridors to promote the movement of species, identification of areas of "refuge" as a last resort, restoration of habitats …

The Mediterranean, which counts for example three species emblematic of marine tortures, would see close to one third of the plants, mammals and amphibians threatened with + 2 ° C, if no possibility of adaptation is left to them.

This publication comes as Saturday opens in Medellin (Colombia) an important conference on the state Biodiversity in the World.

Extinction does not mean just disappearance of species, says WWF, "but profound changes for ecosystems rendering vital services to hundreds of millions people, "whether it's food, but also supporting tourism or researching future drugs.

Demonstrators of Republican Faction and Democrats Threaten the Closure of Federal Government Activities

The Democrats have still not recovered from the resentment of the passing of Republican tax reforms in the Senate but the bill's victory makes the Democrat Party increasingly critical in the process of forming a Republican-led government budget, consequently there is concern that this situation has an impact on closing of government activities.

House Speaker Paul Ryan called the bill the Senate passed on Saturday morning "monumental reform" as he and other Republican leaders still celebrate the bill's victory.

"This is a monumental reform. And we do it the right way. We start with the framework, then submit the House of Representatives bill through the committee, "said Ryan.

Meanwhile, Republican leaders in the House are adamant on their plans to extend short-term budgets for the government to operate despite opposition from the extreme right calling himself Freedom Caucus.

The Congress faces a deadline Friday (8/12) midnight to fund government agencies or face the risk of partial halting of its activities.

Pete Sessions, chairman of the House Rules Committee on Tuesday told reporters that the House the temporary budget for two weeks until December 22.

This will give Republicans and Democrats time to negotiate items from their respective agendas in the last minute such as the total amount of the budget, funds for child health care and disaster relief .

House Speaker Paul Ryan expressed his optimism that the power of m the Republican minority in the House will ease the passage of the budget

"I think we will reach the majority. We will get 218 votes to pass the 'Sustainable Resolution' we have this week. We negotiate with the members on the right way to do it. "

Conservative Parliamentarian Freedom Caucus wants a budget extension until December 30, fearing that too short a time will benefit the Democrats in negotiations.

Though The House Speaker expressed his optimism that President Donald Trump blamed Wednesday on the Democrat Party which made it difficult to pass the government budget.

"The government's closure could have happened, the Democrats really play with something very dangerous for our country, they want the government closed. want illegal immigrants to enter, and in many cases people we do not want to be in our country, "Trump said.

Republican and Democratic leaders in Congress meet with President Donald Trump at the White House on Thursday (7/12 ). [my/jm]