Category Archives: Impacts Observed & Projected

PLEA Network

2 March 2021, Renew Economy: ustralia shifts emissions baseline again, as Covid-carbon rebound begins. Despite 2020 being a record year for renewable energy output in Australia, total emissions have begun a steady increase again as the impacts of a fossil-heavy COVID19 … Continue reading →

PLEA Network

13 January 2021, The Conversation, Worried about Earth’s future? Well, the outlook is worse than even scientists can grasp. Anyone with even a passing interest in the global environment knows all is not well. But just how bad is the situation? Our new paper shows the outlook for life on Earth is more dire than is generally understood. The research published today reviews more than 150 studies to produce a stark summary of the state of the natural world. We outline the likely future trends in biodiversity decline, mass extinction, climate disruption and planetary toxification. We clarify the gravity of the human predicament and provide a timely snapshot of the crises that must be addressed now. The problems, all tied to human consumption and population growth, will almost certainly worsen over coming decades. The damage will be felt for centuries and threatens the survival of all species, including our own. Our paper was authored by 17 leading scientists, including those from Flinders University, Stanford University and the University of California, Los Angeles. Our message might not be popular, and indeed is frightening. But scientists must be candid and accurate if humanity is to understand the enormity of the challenges we face. Read more here

PLEA Network

13 January 2021, ABC: As the Arctic melts, a regime shift is taking place. The Arctic is changing faster than any environment on Earth. The old order is being swept away, leaving scientists to ask: What’s coming in its place? Where there was once ice, there is now open ocean. Milky swirls of plankton, hundreds of kilometres in length, now bloom where polar bears once roamed. It is a spectacular sight looking down from space. The Arctic is exploding with new life — but not as we know it. Microscopic phytoplankton is the foundation of the marine food chain. It has increased in abundance in the Arctic by more than 50 per cent since the 1990s. Last August, plankton numbers in the seas north of Siberia increased by 600 per cent. Read more here

PLEA Network

3 December 2020, The Conversation, ‘Severely threatened and deteriorating’: global authority on nature lists the Great Barrier Reef as critical. The Great Barrier Reef is now in “critical” condition and the health of four other Australian World Heritage properties has worsened, according to a sobering report just released by the International Union for Conservation of Nature (IUCN). The IUCN is the global authority on nature. Its third outlook report marks the first time the IUCN has declared an Australian property as critical, which means its values are severely threatened and deteriorating. The health of the Blue Mountains, Gondwana Rainforests, Shark Bay and the Ningaloo Coast has also been downgraded. The assessment, while chastening, is not surprising. The Great Barrier Reef has endured three mass coral bleaching events in five years, and last summer’s bushfires caused untold damage in the Blue Mountains and Gondwana Rainforests (not to mention the current fires at the reef’s Fraser Island). Climate change remains the key issue for World Heritage places, not just in Australia but globally. In fact, the IUCN assessment found climate change threatens 11 of Australia’s 16 properties. This raises further questions over our national climate response. Read more here