by P. Ridd, Mar 2204, in AustralianEnvironmentFoundation
…
Table of Contents
Chapter 1: What is the Great Barrier Reef? 4
Chapter 2: The Great Barrier Reef and its coral: The Data. 11
2.1 The area and number of coral reefs on the Great Barrier Reef 11
2.2 Coral Cover: the amount of coral on the Great Barrier Reef. 11
2.3 Coral growth rates (calcification) 19
Chapter 3: Hot-water ‘bleaching’ on the Great Barrier Reef 23
3.1 Introduction 23
3.2 Are bleaching events a new phenomenon? 23
3.3 Corals and their algal friends. 25
3.4 Bleaching is not usually lethal: it is a survival strategy. 27
3.5 Analysis of past GBR bleaching events. 29
3.6: Excuses for Failed Bleaching Predictions 31
3.7 Corals Like it Hot. 33
Chapter 4: Impact of agriculture on coral 35
4.1 Introduction. 35
4.2 Water flushing time of the GBR. 36
4.3: Nutrient ‘pollution’. 38
4.4 Sediment ‘pollution’. 42
4.5 Pesticides. 49
Chapter 5: Stretching the GBR to the coast. 54
5.1 Introduction. 54
5.2 Inshore Reefs. 54
5.3 Mangrove Swamps. 61
5.4 Seagrass beds. 63
5.5 Coastal Freshwater ecosystems. 68
5.6 Importance of Coastal ecosystems to the Great Barrier Reef. 69
Chapter 6 Summary and conclusions 71
Appendix Usefulness of coral cover measurements. 74
About the Author 79
Acknowledgments
by P. Homewood, Mar 11, 2024 in NotaLotofPeopleKnowThat
Campaign group Net Zero Watch is again calling for an inquiry into the Climate Change Committee (CCC), the Government’s official advisers on decarbonisation. The move follows revelations at the weekend that the CCC’s chief executive, Chris Stark, had tried to use obfuscation to “kill” questions over the adequacy of its energy system model, rather than addressing them directly. This behaviour put Stark in direct breach of the Nolan standards for public officeholders.
|
The scandal, published in the Sunday Telegraph, is just the latest of a series of controversies that have dogged the CCC since its inception.
|
…
by K. Richard, Mar 11, 2024 in NoTricksZone
CO2-induced global warming was supposed to intensify the hydrological cycle and extreme precipitation. It hasn’t.
New research (Mitchell and Knapp, 2024) at a southeastern United States study site indicates there has been no significant trend in either total precipitation or intense rainfall events (IRE) over the last 250 years (1770-2020).
However, there was more IRE precipitation from 1936-1959 than from 1960-2020. In fact, the most recent 60 years has the lowest record of extreme precipitation during the study, with averages of 81.20 mm for 1770–1935, 230.45 mm for 1936–1959, but just 168.27 mm during 1960–2020.
…
La géologie, une science plus que passionnante … et diverse