Society would have to carry out “unprecedented” changes to the way it operates to keep global temperatures from rising by less than targeted or it risks increases in heat waves and flood-causing storms and the chances of drought in some regions, a U.N. report said on Monday.
Keeping the Earth’s temperature rise to only 1.5 degrees Celsius (2.7 degrees Fahrenheit) rather than the 2C target agreed to at the Paris Agreement talks in 2015, would have “clear benefits to people and natural ecosystems,” the U.N. Intergovernmental Panel on Climate Change (IPCC) said on Monday in a statement announcing the report’s release.
The IPCC report said at the current rate of warming, the world’s temperatures would likely reach 1.5C between 2030 and 2052 after an increase of 1C above pre-industrial levels since the mid-1800s.
Keeping the 1.5C target would keep the global sea level rise 0.1 meter (3.9 inches) lower by 2100 than a 2C target, the report states. That could reduce flooding and give the people that inhabit the world’s coasts, islands and river deltas time to adapt to climate change.
The lower target would also reduce species loss and extinction and the impact on terrestrial, freshwater and coastal ecosystems, the report said.
“Every extra bit of warming matters, especially since warming of 1.5C or higher increases the risk associated with long-lasting or irreversible changes, such as the loss of some ecosystems,” Hans-Otto Pörtner, who leads one of the IPCC’s working groups, said in the statement.
The IPCC met last week in Incheon, South Korea to finalize the report, prepared at the request of governments in 2015 to assess the feasibility and importance of limiting global warming to 1.5C.
The report is seen as the main scientific guide for government policymakers on how to implement the 2015 Paris Agreement during the Katowice Climate Change Conference in Poland in December.
To contain warming at 1.5C, manmade global net carbon dioxide (CO2) emissions would need to fall by about 45 percent by 2030 from 2010 levels and reach “net zero” by mid-century. Any additional emissions would require removing CO2 from the air.
The report summary said renewable energy would need to supply 70 percent to 85 percent of electricity by 2050 to stay within a 1.5C limit, compared with about 25 percent now.
Using carbon capture and storage (CCS) technology, the share of gas-fired power would need to be cut to 8 percent and coal to under 2 percent. There was no mention of oil in this context in the summary.
If the average global temperature temporarily exceeded 1.5C, additional carbon removal techniques would be required to return warming to below 1.5C by 2100.
But the report said the efficacy of measures, such as planting forests, bioenergy use or capturing and storing CO2, were unproven at a large scale and carried some risks.
But the effects of not meeting the 1.5C target would mean huge changes to the world. The lower level would mean the Arctic Ocean would be free of sea ice in summer only once per century not at least once a decade under the higher target. Coral reefs would decline by a still unsustainable 70 percent to 90 percent instead of being virtually wiped out under the higher increase.
“The report shows that we only have the slimmest of opportunities remaining to avoid unthinkable damage to the climate system that supports life as we know it,” said Amjad Abdulla, the IPCC board member and chief negotiator for an alliance of small island states at risk of flooding as sea levels rise.
New Zealand: 49 Killed In Mass Shooting At Two Mosques In Christchurch
49 persons have been killed and 20 seriously injured in two mass shootings at mosques in the New Zealand city of Christchurch.
Forty-one were killed at the al Noor mosque. Seven died at the Linwood mosque, and one person died at the hospital.
Police say four persons, including three men and one woman, have been taken into custody. They do not believe there are any other suspects but said it was still an open investigation.
Police said a male, in his late 20s, has been charged with murder and will appear at the Christchurch court Saturday morning local time.
In a social media post just before the attack, an account that is believed to belong to one of the attackers posted a link to an 87-page manifesto that was filled with anti-immigrant, anti-Muslim ideas and explanations for an attack. The manifesto was not signed.
Britain Votes In Favor Of Delaying Brexit
Britain’s parliament has voted in favour of delaying by three months, UK’s departure from the European Union pending approval of Prime Minister Theresa May’s Brexit deal within a week.
MPs in the house of commons voted four hundred twelve to two hundred two on Thursday in Favour of a government motion proposing pushing the UK’s exit from the bloc beyond the scheduled March the 29th date.
The motion said the government would seek a “one-off extension” until June the 30th “for the purpose of passing the necessary EU exit legislation,” provided May’s widely maligned deal wins parliament’s approval by Wednesday next week.
If May fails to win parliamentary approval for her deal by march 20, the Brexit delay could be extended beyond three months. Twice now, British legislators have overwhelmingly rejected her EU divorce deal.
Israel Launches Gaza Air Attacks After Rockets Fired At Tel Aviv
Israel launched air attacks on Gaza hours after rockets were fired aimed at Tel Aviv.
This has raised fears of a major escalation in the Israeli-Palestinian conflict.
Explosions were heard in the Gaza strip early on Friday and Palestinian witnesses said Israeli planes bombed Hamas security positions.
A Gaza Palestinian security source told AFP news agency about 30 raids targeted positions held by the military wing of Hamas and its ally Islamic jihad, causing significant damage.
Local Palestinian agencies reported a woman and her husband were both injured in the southern city of Rafah, but did not provide further details.
Israeli military said it was attacking “terror sites” in Gaza, hours after it said two rockets were launched from the enclave in the Tel Aviv area.
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