The Times Australia
The Times World News

.
The Times Real Estate

.

the world's climate change progress since 2019 is (mostly) bad news

  • Written by Thomas Newsome, Academic Fellow, University of Sydney

Back in 2019, more than 11,000 scientists declared a global climate emergency[1]. They established a comprehensive set of vital signs[2] that impact or reflect the planet’s health, such as forest loss, fossil fuel subsidies, glacier thickness, ocean acidity and surface temperature.

In a new paper[3] published today, we show how these vital signs have changed since the original publication, including through the COVID-19 pandemic. In general, while we’ve seen lots of positive talk and commitments from some governments, our vital signs are mostly not trending in the right direction.

So, let’s look at how things have progressed since 2019, from the growing number of livestock to the meagre influence of the pandemic.

Is it all bad news?

No, thankfully. Fossil fuel divestment and fossil fuel subsidies have improved in record-setting ways, potentially signalling an economic shift to a renewable energy future.

the world's climate change progress since 2019 is (mostly) bad news The graph on the left shows an increase in fossil fuel divestment by 1,117 organisations based on data from 350.org, and the graph on the right shows a decrease in subsidies for fossil fuels based on the International Energy Agency subsidies database. The red lines show changes since our original publication in 2019.

However, most of the other vital signs reflect the consequences of the so far unrelenting “business as usual” approach to climate change policy worldwide.

Especially troubling is the unprecedented surge in climate-related disasters since 2019. This includes devastating flash floods in the South Kalimantan province of Indonesia[4], record heatwaves in the southwestern United States[5], extraordinary storms in India[6] and, of course, the 2019-2020 megafires in Australia[7].

In addition, three main greenhouse gases — carbon dioxide, methane and nitrous oxide — set records for atmospheric concentrations in 2020 and again in 2021. In April this year, carbon dioxide concentration reached 416 parts per million[8], the highest monthly global average concentration ever recorded.

the world's climate change progress since 2019 is (mostly) bad news Time series of three climate-related responses. The red lines show changes since our original publication in 2019.

Last year was also the second hottest year in recorded history[9], with the five hottest years on record all occurring since 2015.

Ruminant livestock — cattle, buffalo, sheep, and goats — now number more than 4 billion[10], and their total mass is more than that of all humans and wild mammals combined. This is a problem because these animals are responsible for impacting biodiversity, releasing huge amounts of methane emissions, and land continues to be cleared to make room for them.

the world's climate change progress since 2019 is (mostly) bad news There are now more than 4 billion livestock on Earth. Flickr

In better news, recent per capita meat production declined[11] by about 5.7% (2.9 kilograms per person) between 2018 and 2020. But this is likely because of an outbreak of African swine fever in China that reduced the pork supply, and possibly also as one of the impacts of the pandemic.

Tragically, Brazilian Amazon annual forest loss rates increased in both 2019 and 2020[12]. It reached a 12-year high of 1.11 million hectares deforested in 2020.

Ocean acidification is also near an all-time record. Together with heat stress from warming waters, acidification threatens the coral reefs that more than half a billion people depend on for food, tourism dollars and storm surge protection.

the world's climate change progress since 2019 is (mostly) bad news Map of land-ocean temperature index anomaly in June, relative to the 1951-1980 baseline. Oregon State/NASA

What about the pandemic?

With its myriad economic interruptions, the COVID-19 pandemic had the side effect of providing some climate relief, but only of the ephemeral variety.

For example, fossil-fuel consumption has gone down since 2019[13] as did airline travel levels[14].

But all of these are expected to significantly rise as the economy reopens. While global gross domestic product dropped by 3.6% in 2020[15], it is projected to rebound to an all-time high.

So, a major lesson of the pandemic is that even when fossil-fuel consumption and transportation sharply decrease, it’s still insufficient to tackle climate change.

There is growing evidence we’re getting close to or have already gone beyond tipping points[16] associated with important parts of the Earth system, including warm-water coral reefs, the Amazon rainforest and the West Antarctic and Greenland ice sheets.

the world's climate change progress since 2019 is (mostly) bad news Warming waters are threatening West Antarctic and Greenland ice sheets. Flickr

OK, so what do we do about it?

In our 2019 paper, we urged six critical and interrelated steps governments — and the rest of humanity — can take to lessen the worst effects of climate change:

  1. prioritise energy efficiency, and replace fossil fuels with low-carbon renewable energy

  2. reduce emissions of short-lived pollutants such as methane and soot

  3. curb land clearing to protect and restore the Earth’s ecosystems

  4. reduce our meat consumption[17]

  5. move away from unsustainable ideas of ever-increasing economic and resource consumption

  6. stabilise and, ideally, gradually reduce human populations[18] while improving human well-being especially by educating girls and women globally.

These solutions still apply. But in our updated 2021 paper, we go further, highlighting the potential for a three-pronged approach for near-term policy:

  1. a globally implemented carbon price

  2. a phase-out and eventual ban of fossil fuels

  3. strategic environmental reserves to safeguard and restore natural carbon sinks and biodiversity.

A global price for carbon needs to be high enough to induce decarbonisation across industry.

And our suggestion to create strategic environmental reserves, such as forests and wetlands, reflects the need to stop treating the climate emergency as a stand-alone issue.

By stopping the unsustainable exploitation of natural habitats through, for example, creeping urbanisation, and land degradation for mining, agriculture and forestry, we can reduce animal-borne disease risks, protect carbon stocks and conserve biodiversity — all at the same time.

A kangaroo in burnt bushland There has been a worrying number of disasters since 2019, including Australia’s megafires. Shutterstock

Is this actually possible?

Yes, and many opportunities still exist to shift pandemic-related financial support measures into climate friendly activities. Currently, only 17% of such funds[19] had been allocated that way worldwide, as of early March 2021. This percentage could be lifted with serious coordinated, global commitment.

Greening the economy could also address the longer term need for major transformative change to reduce emissions and, more broadly, the over-exploitation of the planet.

Our planetary vital signs make it clear we need urgent action to address climate change. With new commitments getting made by governments all over the world, we hope to see the curves in our graphs changing in the right directions soon.

Read more: 11,000 scientists warn: climate change isn't just about temperature[20]

References

  1. ^ declared a global climate emergency (www.sydney.edu.au)
  2. ^ vital signs (doi.org)
  3. ^ paper (academic.oup.com)
  4. ^ South Kalimantan province of Indonesia (www.greenpeace.org)
  5. ^ southwestern United States (edition.cnn.com)
  6. ^ storms in India (edition.cnn.com)
  7. ^ 2019-2020 megafires in Australia (www.wwf.org.au)
  8. ^ 416 parts per million (gml.noaa.gov)
  9. ^ second hottest year in recorded history (www.noaa.gov)
  10. ^ 4 billion (wolfkind.neocities.org)
  11. ^ declined (www.fao.org)
  12. ^ increased in both 2019 and 2020 (rainforests.mongabay.com)
  13. ^ down since 2019 (www.bp.com)
  14. ^ airline travel levels (data.worldbank.org)
  15. ^ 3.6% in 2020 (data.worldbank.org)
  16. ^ tipping points (theconversation.com)
  17. ^ meat consumption (theconversation.com)
  18. ^ reduce human populations (www.economist.com)
  19. ^ only 17% of such funds (www.oecd.org)
  20. ^ 11,000 scientists warn: climate change isn't just about temperature (theconversation.com)

Read more https://theconversation.com/more-livestock-more-carbon-dioxide-less-ice-the-worlds-climate-change-progress-since-2019-is-mostly-bad-news-165168

The Times Features

Itinerary to Maximize Your Two-Week Adventure in Vietnam and Cambodia

Two weeks may not seem like much, but it’s just the right time for travelers to explore the best of Vietnam and Cambodia. From the bustling streets of Hanoi to the magnificent te...

How to Protect Your Garden Trees from Wind Damage in Australia

In Australia's expansive landscape, garden trees hold noteworthy significance. They not only enhance the aesthetic appeal of our homes but also play an integral role in the local...

Brisbane Homeowners Warned: Non-Compliant Flexible Hoses Pose High Flood Risk

As a homeowner in Brisbane, when you think of the potential for flood damage to your home, you probably think of weather events. But you should know that there may be a tickin...

Argan Oil-Infused Moroccanoil Shampoo: Nourish and Revitalize Your Hair

Are you ready to transform your hair from dull and lifeless to vibrant and full of life? Look no further than the luxurious embrace of Argan Oil-Infused Moroccanoil Shampoo! In a...

Building A Strong Foundation For Any Structure

Building a home or commercial building can be very exciting. The possibilities are endless and the future is interesting. You can always change aspects of the building to meet the ...

The Role of a Family Dentist: Why Every Household Needs One

source A family dentist isn’t like your regular dentist who may specialise in a particular age group and whom you visit only when something goes wrong. A family dentist takes proa...

Times Magazine

"Eternal Nurture" by Cara Barilla: A Timeless Collection of Wisdom and Healing

Renowned Sydney-born author and educator Cara Barilla has released her latest book, Eternal Nurture, a profound collection of inspirational quotes designed to support mindfulness, emotional healing, and personal growth. With a deep commitment to ...

How AI-Driven SEO Enhancements Can Improve Headless CMS Content Visibility

Whereas SEO (search engine optimization) is critical in the digital landscape for making connections to content, much of it is still done manually keyword research, metatags, final tweaks at publication requiring a human element that takes extensiv...

Crypto Expert John Fenga Reveals How Blockchain is Revolutionising Charity

One of the most persistent challenges in the charity sector is trust. Donors often wonder whether their contributions are being used effectively or if overhead costs consume a significant portion. Traditional fundraising methods can be opaque, with...

Navigating Parenting Arrangements in Australia: A Legal Guide for Parents

Understanding Parenting Arrangements in Australia. Child custody disputes are often one of the most emotionally charged aspects of separation or divorce. Parents naturally want what is best for their children, but the legal process of determining ...

Blocky Adventures: A Minecraft Movie Celebration for Your Wrist

The Minecraft movie is almost here—and it’s time to get excited! With the film set to hit theaters on April 4, 2025, fans have a brand-new reason to celebrate. To honor the upcoming blockbuster, watchfaces.co has released a special Minecraft-inspir...

The Ultimate Guide to Apple Watch Faces & Trending Wallpapers

In today’s digital world, personalization is everything. Your smartwatch isn’t just a timepiece—it’s an extension of your style. Thanks to innovative third-party developers, customizing your Apple Watch has reached new heights with stunning designs...

LayBy Shopping